Rough play is different for everybody, I guess. When I had my German Shepardm rough play was rolling on the floor with her and wrestling... Imagine doing that with tiny Yorkie
LOL, but I can play wrestle with using my hand, and he loves it. Esp Daddy is good at it, he pushes Pepper away and pretends his hand is a snake, Pepper goes crazy and always comes back for more... That's so much of a 'rough play' for a 4 punder