My dog is not a cat, obviously, but her quirks may be applicable here. She likes other dogs and welcomes their presence but when it comes to a young, rambunctious one she is a fixer: She takes it upon herself to teach the young'un what, in her view, is acceptable; she snaps and barks and spins around. She never harms the pup physically but she may well scar it for life psychologically *g*. The pups' reactions vary- some cringe away, some bounce around begging her to lighten up and play, some growl.

Insert 'new' for 'young' and you got it. :)