My neighbor used to ask me to babysit his Albino Python names Ballsy. Whenever he left his snake in my office, I would just close the doors and let him roam free. He never did much roaming though. He'd usually just stay in one part of the room. Sometimes I would just leave Ballsy on my table and it would just stay there. Ballsy was a good snake and never gave me any trouble. He was long and heavy. The circumference of his body was as big as my leg. When I had to go to another part of the office, I would "wear" Ballsy on my shoulders and hold his head up. I think pythons are pretty harmless as long as they weren't hungry. I don't know about other snakes though. I would probably not be as calm with a poisonous snake.