The first time I went to feed my BP, she tried to eat the thing sideways. took a few hours before I was finally able to make her drop it and try again head first. She's done this a few times here and there, but since that first time she's pretty much been good, and now when she does go sideways, she'll eventually realize she's wrong and will adjust...
Which is why her feeding a few weeks ago was so weird. She grabbed the mouse(F/T weanling) in the middle of its body. I figured she's eventually give up as usual, except instead, she proceeds to bend the mouse in half so it's head is between its legs, and eats the mouse-ball from the back to the head/feet.
That was when i decided to just throw away the remaining weanlings instead of finishing them up.