[Quiet Man Cometh]

He might well be laughing because of your reaction, and getting that angry annoyed about it is likely to encourage him. Not that I don't understand, it's probably more frustrating than I imagine.

I ask about the dog and cat because if it is something your cat is doing that is setting off the dog, just yelling at the dog won't fix things. As much as one might dislike an pet, consideration needs to be given to all animals by every person to make for smoother living.