Hi I have a 7 year old Staffordshire bullterrier called Bryn. He has always been the boss of our family and we have had advice about how to handle him but its now getting to the point he will hurt my husband. For some reason which I cannot understand he keeps trying to attack his feet, bottom of his trousers and then takes it too far where you can see him really meaning it, I stop it immediately but he has managed to pinch bite my husband's feet and legs and has marked him quite badly. On several occasions I have took Bryn to the vets and they have told me he may have to be destroyed. He his well looked after, exercised 3 times a day he has a kennel outside which he loves, he has all the toys he could ever want, all the love off the whole family except my husband his very nervous of Bryn now, when he does this behavior he his put in time out in the hall suggested by a behavour specialist, he seems to accept what he's done and when allowed back into the room he doesn't do it again until a few days later. What do I do? I am worried now that my husband will not cope much longer has its really a worry when we are just sitting watching TV and Bryn decides he his going to attack!!!! What have I done wrong?