I apologize in advance for the length of this.
I have to admit that I'm surprised that you both remembered my hotel cat

. There are so many threads on here, so I'm really impressed that people remembered what I had posted! I'm sorry I didn't update my original thread about him. With the move we lost internet for a while, then had it hooked up but not working correctly. And with the unpacking in general, I haven't had a lot of free time to get on the computer. But we did trap him! We had to go back once we left the hotel, although we did try to trap him while we were still there. I don't even know how this happened, but we set the trap out on our last night there, and he walked right into it - but it didn't trigger and close! We went back for the next 4 nights, and left food for him but didn't see him (which wasn't necessarily unusual, but we couldn't just sit there looking out the window for him to show up anymore, so we waited for a bit and then left to come back and try again), and finally on the 5th night, he was sitting in front of the window of the room we used to be in, waiting for us. That time the trap actually worked

.
We definitely thought that we misjudged him when we first let him out of the trap. He FREAKED and literally ran up the walls in our bathroom, and eventually planted himself on top of the light fixture...which didn't look comfortable in the least, but he parked himself there for 2 days, growling and hissing and swiping at us. We eventually managed to lure him into a carrier and we relocated him to a huge dog crate on our back porch. He's definitely a male, and he has that nasty un-neutered male scent, which is ultimately why he was relocated outside for the time being. Plus, we needed to use the bathroom, and we didn't want him having any interaction with our other cats until he was tested for Felv and FIV. He has a lot of space in that crate though, and the weather has been really nice, but I still want to just bring him inside

.
So as I said before, about a week went by and suddenly he just decided that he LOVES people, and now he's as sweet as can be. I think we just terrified the poor thing at first.
But on to the vet - the appointment went MUCH better than I was anticipating! I definitely get myself too worked up and worried about things. First, he's negative for both leukemia and FIV

. That was my biggest relief. The wound on his neck looks bad, but the vet thinks its from him scratching his neck, and he keeps re-opening the wound. Its not infected. It just looks gross because it keeps scabbing over and he seems to keep ripping the scab off. What we thought were ticks, are actually other scabs. I don't know how I managed to think that a scab was a tick, but he really wouldn't let us get a good look at it. All I could feel was a bump that felt like it was sort of hanging onto his skin. He has the scabs all over his head though, which the vet also thinks is from scratching. The scar on his back looks like a bite wound (just based on the shape), but again, it turns out to be from scratching. He scratched his back while in the vets office, and he scratched right over that entire area, so I'm glad we saw that to know what caused it. So right now the vet suspects allergies. He said its most likely the food we're feeding him (which I seriously feel so bad about. We were just trying to help him and we may have been feeding him something that he's allergic too.) He got a steroid shot today, and the vet doesn't want us to switch his food until the shot wears off. He said that since the biggest problem seems to be itching, keep feeding him the same food. If the scratching doesn't start up again when the steroid wears off, then it may have just been an environmental or seasonal thing. But if it starts up immediately again, then he wants to start figuring out what the allergy is. From what I understand he wants us to continue feeding the same food for now because if we stop the food now then he won't be able to tell if it was the food or the steroid that stopped the problem.
As for his swollen gum, he has a fractured tooth and a gum infection. The tooth is on the top, and the gum is infected on the bottom. It looks like the rough end of his broken tooth has been rubbing the gum beneath it. But the vet said the infection wasn't really too bad. It just looked more like an irritation that was turning into an infection. He said that ideally we'll have to remove the tooth, but its one of his front pointy teeth (I know I should know what they are called, but I don't...are they called canines in cat?), so he wants to attempt a course of antibiotics first. He's eating just fine, and currently doesn't seem bothered by the tooth, so he said if the infection clears up with the antibiotics then he'll leave it alone and possibly file down the rough edge when he gets neutered. If the infection doesn't clear up (or if it clears up and comes right back) he's going to take a closer look at his entire mouth and see if that tooth, and potentially others have to be removed. Aside from that though, he said his teeth are really clean, and based on that he thinks that this guy is younger than two years old. He suspects that some kind of trauma happened which caused his tooth to break.
He also has ear mites, but I picked up some Revolution for all of my cats, and he'll get a dose too. He has no evidence of fleas (which truly amazed me because apparently fleas are a huge problem down here) and no evidence of tapeworms caused by fleas. I know that you can't always see tapeworms, but he has no flea dirt on him, so his fur is rough and dirty, but flea free!
Meanwhile, this has turned out to be the sweetest cat ever! I was afraid of how he would act at the vet. Based on how he freaked out when we first brought him home, I thought the same thing would happen at the vet. Then on our way there, he peed in his carrier, which has never happened to me before, so I was a little embarrassed to walk in with a cat smelling so bad. The tech was a little worried about opening the carrier based on what I had told her about him, but when she did, he came right out, flopped over on his side and just started purring and kneading the air, and rubbing up against me, the tech and the vet (which in turn made us all smell like cat pee, so that was kind of embarrassing for me. I know they deal with stuff like this all the time, but I still felt bad. One of the techs said "Its always the ones you don't want to touch who will rub all over you - they're always the sweetest." I'd have to agree.)
So now I have to keep an eye on him for the next two weeks. Then he'll get his vaccines (the vet didn't want to do the vaccines and the steroid shot at the same time), and get neutered, and then I really need to find this guy a home!! We're definitely at our max with cats here, but this guy is definitely a sweetheart and deserves a good, happy home. He looks rough and beat up though. Thats the kind of cat I would want, but it seems like most people want cute kittens, or pretty/perfect looking cats. Hopefully, I'll be able to find someone who will take in a sweet cat who apparently lived a rough life on the streets. I also need to come up with a name for him.