Some dogs have had most of the hunting instincts bred out of them and some have had them reinforced so there is a world of differance between the hunting instincts of a Papillon and a pig dog. I had a pig dog once. I fell in love with her so my parents let me keep her but she ended up chasing sheep which is a big no-no in a rural area. My parents gave her away instead of putting her down and the guy they gave her to used her for pigging. Six months later I got a phone cal from out vet to let me know he had just put my beautiful girl down after she was gored by a boar :sad: If I had fallen for a miniture poodle I would have saved myself a word of heartache.
If you're going to let your DH take the family pet pigging be prepared for some nasty accidents and maybe premature death. If you look at any working pig dog you will notice that they are pretty battered.