I'm in the process of training a young dog. One of the things he is bound to do, is to jump up on people. Now, with other breeds, an effective way of dealing with this is to give him a knee in the chest, or, step on his hind feet. I have seen that work well in other dogs..not this one, he is a Labrador retriever, bred for hard work and he is almost immune to pain. The other method is to turn your back on him when he exhibits undesireable hehavior. The reason he acts like that is simple..he wants your attention, but, if you turn your back he gets just what he does NOT want. I'm sure the average 'catter can see the analogy here.