Mista Lizad Man's story is a bit complicated, but the situation with his tail is quite common for bearded dragons.
I got MLM from my friend who got him from her BIO dept. at her college. The story was, when he was younger he was with two other BDs (a no no as they start to reach maturity) one was a male the other was a female. I don't know what happened to the other male, but him and the other male got in a fight, and the result was the loss of his tale. He had a few homes after that including my friend (appearantly he bit someone so hard the person had to go to the hospital). So he was named Stitch, due to his varying personalities like the movie character. My friend asked if I could care for him while she was at school since her dorm didn't allow reptiles any longer. So him and his 20g long tank came to vacation with me. A few months later, she calls me and tells me she isn't able to commit to caring for him anymore and she was going to post him for adoption on CL or something so she wanted to ask me first if I wanted him since he was already with me. I automatically said yes and vowed to myself that he was never going to leave my home cus he has been shuffled around way too much. I upgraded his 20g Long to a 120g and spent a few months fighting, with help from the vet, a massive pinworm infestation due to being fed unhealthy crickets. I had to syringe feed him daily cus he wouldn't eat, etc. Recently I downgraded his tank to a 40g Breeder since in our new house for some reason he was always cold with that amount of space and wasn't all that active. As soon as I did he perked up and has been loving life.
I changed his name to Rainier (after the latin for ruler) and cus his favorite decoration in his 20g long was the cliff like mountain thing (you can see it in the pic) and cus of the mountain Rainier, I thought of him as the ruler, or dragon of the mountain, kinda silly, but i thought it was cute. I hated Stitch.
I love this dude so much, he totally is psychic, wise like Yoda I swear, he acts like he doesn't but knows EVERYTHING :P I can touch him all over and around his mouth and face and he won't bite and when I let him out when he gets tired sometimes he has come and jumped on me and snuggled for warmth while sleeping.

Can you see his Bug Belly? (as I called it):

upgraded 120g:

And his new 40g breeder and more svelte appearance (appperantly he still is fat according to the vet though :-/ ):

sorry for the long post, I got very involved in the storytelling process LOL.:P