My dogs play tricks on each other, and I guess I egg it on because I laugh
When Maddie was a baby she would get all the toys and either lay on them or put them in a space only she could fit. Maddie LOVES to play fetch! Cricket will wait for Maddie to fetch the toy but right before she gives it back to me will pounce on her and take it away. I think it's a little bit of kharma