have to move with the times, technology... i personally wouldnt put a line on a ferret, too much of a risk of it getting tangled up & caught on something, also no one can tell what a warren is like under ground, might end up wrapping its self round cross tunnels, then it would be f*****...
& i dont believe in the saying " in the old days we use to, ect " well in the old days we use to walk everywhere, but now we have cars, boats & planes.. technology makes life easier..