That's not always the case, had a pup a good few years back that was brought on the right way. He was turning into a decent animal, ferreting, mooching and lamping. He'd caught a fair number of rabbits but out of the blue he started yapping behind a rabbit one day and that was him from that day on. Run it through my head time and time again trying to work out what I did wrong. The answer was nothing, he'd never been asked too much, only ever ran on rabbits and had caught plenty, the simple fact was he was a yapper and it was only a matter of time before it surfaced.
covered that
You