I just got to wondering this because I had recently been on vacation for a couple of weeks and my boyfriend was left home to take care of the snakes. Well my ball python refused to eat the entire time I was gone, my boyfriend said he wouldn't even acknowledge that the rats existed, he even left them in tank over night. Before I left I made sure that my boyfriend could properly thaw the rats and get them to the proper temperature. I was so worried the whole time I was gone because Nox (my bp) has never refused a meal before, he LOVES feeding day!
I guess he just really doesn't like my boyfriend since he just at a nice rat for me no problem.
So do you think that maybe they begin to recognize their primary caretaker by scent, and that a different person may make them stressed out?