Harry is a selfish little bastard!
We bought our puppy Harry first, and lavished him with more toys and gifts than we bought for ourselves and as can be expected, all that did is spoil him and convince him that the world revolves around him.
So when we bought a kitten, Fiona, he decided what was hers was now his and what was his she had frankly better not touch. So he began eating her food (you should have seen the poor cat eating the dog food after he polished off her dish) till we bought a cat house to put it out of his reach and he began to take anything she played with away from her and hide it in his house.
In this video you can see that he’ll take anything she plays with away from her and try to hide it in one of his play spots.