I have a central american boa thats I feed a small rat every week. I keep him in a 4ft boapile cage temps and conditons are correct. My question is that every once in while he will bite and constrict his prey then abonden it. I leave the rat in there for about a hour and he just goes back into his hide and doesn't eat it. Anybody know what this could be? He has done this the last two times I tried to feed him.

