That's what I did with Cody. Although I've read that kneeing them in the chest can be harmful, I never applied much pressure, I just held my knee up and sternly said "Off!" and it also worked like a charm! I tried stepping on the back feet, but he danced around so I could never get to them! Luckily, the only time Logan jumps on me is when she has to go out to the bathrrom badly.