i,am from mid wales and crossed wild polecats with ferrets 50years ago they are the best workers you will ever have you dont need a marking dog because they wont enter when there is nothing at home and the dont bite if there well handled, and they dont come out until theres no rabbits in the burrow their faster than ferrets when working even greyhound ferrets arent as fast, why knock them when youve never worked them their not for beginners so stop talking them down. it doz my head in reading rubbish by in experrence people that think they know it all :D