I really hope that's non-toxic paint. You never know with kids. They don't think this kind of thing through. Lots of adults don't think this kind of thing through either. One moment you're dying you and your dogs hair, the next minute both of your hair is falling out. The dog is confused. You're confused. Everyone is confused. It's just a bad time. What I'm saying is that you should always read the labels.
It's funny how dogs know when they look stupid. This dog is totally aware that he's been made to look like a fool. The dog is lacking the knowledge of modern society to know exactly why he should be humiliated, but at the gut level, he knows. Just look into his eyes. It's clear as day that he feels betrayed.