Tonight i tried for the first time to feed my boy a rat pup... the rat is just a tad bit wider than the snake, shouldnt be a big deal ... and so he strikes and constricts ... waits until he thinks its dead then unravels and he starts moving his jaws like hes trying to draw the rat deeper into his mouth, then realizes that hes bitten the middle of the rat. he lets go, looks for the face, finds it and then crawls all over the dead rat and goes back into his hide... i gave him about 20 minutes but still he didnt swallow it. is this normal ... should i have left the rat in the cage longer?