I bought an ASF from the pet store to feed my large adult BP. I threw the rat in with my snake, alive, and he seems interested - follows the rat all over the cage - but does not strike. I went out and bought a mouse and he took that with no problem. I put the rat back in after he swallowed the mouse and he still will not strike the ASF! I don't understand why he won't take him. He's had regular rats, mice and even a dwarf hamster once. Why won't he take the ASF?