most bolt at first chance which is obvious, but if they kill then its still 1 less for next time. it takes along time, but like most creatures ferrets can be trained, alot of people have them living in their homes along with other pets and there not blood craving killing machines, if you want them like that then expect problems when they are down. everyone prefers their own methods and mine works for me. like i said there are lot of computer bums on this site who think they know! and alot of chatin s.h.i.t.