I had one that took a long time to learn how to eat right....i assisted fed a bunch of times...probably shouldn't have but hated to waste the rats.

I changed a couple of things - fed at night or early evening when they are more active...use tongs to do the zombie dance face foward to induce a well aimed strike......

Then - i don't watch somehow the rat is gone. The more snakes i have the quicker i have to go through feeding and you just don't sweat it....