we used to"tail" them as they run along the rafters /beams in the pig farms and quickly throw them to nearest terrier/lurcher the big ones cant climb their tails as good as a young one and I did receive a canny bite off one many years back- we were bang into our ratting with ferrets back in the day and a few street mongrels would happily tag along and join in then just disappear back into the estate when we got home -a dog was lost once in slurry pit when it chased an escapee -very dangerous slurry pit to a new comer as it looked hard on top but lethal underneath