I know this sounds like a strange question, but for the last 5 nights I've been doing overnight petsits for a 5 year old neutered Airdale (sp?). My first two nights at the house he was great and super sweet, so much fun to play and cuddle with. But the last three nights all he wants to do is hump everything! I want to cuddle with him but not if he's going to try to hump me. And it's not just me, he tries to hump the cat and sometimes he'll just stand in the living room and just start humping the air! I've never seen a dog try to hump nothing before, but this dog does. I've noticed that this behavior does not start until after dinner. In the morning he doesn't do this and I leave after he finishes breakfast, and when I get back in the evening he's fine until after I feed him. I'm not allowed to play with him until after an hour after dinner because he has reflux and will get sick. But when he finishes dinner he runs around like crazy and just humps things all night! I have a few nights left with him and I'd really like to make them as hump free as possible.