i feed both of my snakes live every week and have never had one little incedent ... but of coarse i watch my babies like a hawk on feeding day :) they even eat small rats with no incedents. i kind of help by sticking something in the rats mouth when it goes to bite, but most of the time they wedge it somewhere where it cant get to them, and i also watch to see if they are scratching my snakes. so in my opinion as long as you are a responsible pet owner and watch over them then feed what you will :)
edit---> CONGRATS on the first feeding of the live mouse!!!!!!!!