Live feeding is about being responsible and knowledgeable.
I feed 200/250 or so live prey every month (that's 2400 to 3000 a year and only including breeder animals) and I have done so for YEARS without any incident, it's not luck it's know how.
A few keys to successful live feeding.
Make sure that the feeder is well fed and well hydrated, if you buy your feeder from the store offer food and water before feeding.
Pre-scent the room by leaving the prey near the enclosure 30 min to an hour before feeding.
Do not offer a prey that is too large because they can eat large prey does not mean they need to or should.
Offer in the enclosure.
Do not stress or stun the feeder.
Remove the feeder if not eaten within 10/15 min.
Etc