When I was taking anatomy, there was this weird old gray-haired guy who used to wander around the lab every day. He wasn’t a professor or any sort of teaching fellow. He never spoke to us or anyone, but sometimes watched us as we were dissecting. We hypothesized that maybe he was a homeless man who wandered into the building at some point and then decided it would be cool to learn some anatomy and maybe sleep in the locker room.
One day, none of my three lab partners showed up to lab. Feeling quite abandoned, I tried to go about the lab alone, which was tricky since I never read the lab manual in advance. To my surprise, the weird old guy came over and started helping me!
I got to talking to him, and it turned out he was a retired chiropractor. He said that he always wanted to learn anatomy, so he got permission to observe our labs. He ended up being a really nice guy who helped us a lot over the course of the semester.
I guess the moral of this story is: If there’s a random guy wandering around your anatomy lab, don’t judge him too quickly. Unless he starts getting violent, then you should probably call the police.