I have absolutely no idea if this is true or not but...
Everytime I tell someone I own a snake, especially when I say python, they bring up this story that everyone has heard, about someone that they had a boa I believe, I'm not positive, but it would lay in the bed with them stretched out and the reason this was, was because it was sizing up the owner to see if it would be able to actually eat them.
I think that sounds a little ridiculous to me..:cool: