Here are some tips to feed live
Pre-scent the room
Supervise feeding
Feed smaller preys, feeding a small rats (4 weeks old – 65-85 grams) not only is enough for an adult but it will also reduce the risk of injury
Remove the prey if not eaten within 20 minutes.
Do not stun or abuse the prey prior to feeding (This is pretty common sense but obviously not for everyone)
I feed over live 150 preys each months and none of my snakes ever sustained any injury.