I've never sat in cat vomit, but I sure step in it a whole lot! It doesn't matter where it is on the floor, I will somehow manage to step in it every single time.
I sure know that feeling. Hoping it was a mashed potato that fell off the table from supper. Nope it was poop! ArrrgggI can't tell you how many times I've seen this little thing out of the corner of my eye and thought it was a dead rodent (it doesn't look purple when it's dark or in shadows!) but the kitties love him, so I haven't thrown it away. But the next catnip toys are going to be neon green or orange or something so there's no mistaking it for a real mouse!