Keep working with him, don't give up (don't cave & give him live). Live appeals to more of his senses (warmth, scent, movement) & the trick is to make
f/t as similar as possible: hairdryer for heat, pinch (damage) the nose w/ tongs to release more scent, & use tongs to slightly move rodent past but never
towards the snake...prey doesn't typically "volunteer" and many snakes freak out a little if their f/t meal appears to want to be eaten...it's not their natural
behavior. Your snake is not "scared of" f/t, he's just not yet convinced it's dinner. Your challenge is to convince him.