I live in a rural area - scattered cottages, narrow lane. 2 male Labs from a cottage 1/4 mile away have always been a pain, particularly when anyone has a bitch in season. Neighbour opposite (DB) has 2 Norfolk Terrier bitches (she used to breed them) so not happy to find that one of the Labs hat got in her garden and possibly mated one of her bitches.Discussed mismate jabs with me and then vet. Vets is 3 miles away, market town ringed with new estates. DB to vet.: I bet you don't have use this (mismate) often. Vet:: Goodness it's 3 or 4 times a week. DB Really?!!! Vet: They build houses too close together - and people are stupid! BTW Labs are getting castrated (at long last).