Soo is this just something they do?

Eating themselves, very intensely, with death rolls and all, Something they do for kicks or what?
I have another picture I'll upload in a bit, but whats the deal? She was eating this ASF nicely when I left the room. F/T BTW
http://i1221.photobucket.com/albums/...-45-22_273.jpg

It's not exactly something they do on purpose :P. It's rare but they sometimes end up biting themselves thinking that they're body was the rat. The rat's scent most likely rubbed off on the snake, so while the snake was trying to find the head to start swallowing it latched on to itself.

Just my general thought of what probably happened. I've had my Kingsnake bite himself before accidentally thinking that his body was the rat I was trying to offer. This occasion happened more than once LOL.

lol, yes, sometimes they do this, well mine does at least:rolleye2:, the snake probably got confused and smelled the rat on "him", and decided to go for it, somehow not noticing hes biting himself, or maybe he thinks the rats biting him and that he has the rat? im not sure, but i kinda freaked out the first time mine did that too, but after a minute or two he realized what was going on and went back to the rat