firtsly mate, i wouldnt take him out to "watch" another dog run. this serves no purpose at all. Does he yap in the daytime?. Does he yap during the run, or when the rabbit is next to cover?. personally i would just give him a couple of weeks off, maybe bolt a few with the ferret to see what he's like in the daytime. But, sometimes, they never stop. Unfortunately, its mostly down to the dog, and not you. Hope things come good.
he as yapped in the daytime as well as the night in question,he only yapped during the run it is very frustrating for me because as i have said he has had many rabbi