When Zoee got skunked last year she was pink for a while from the tomato juice. Hee hee.
And I do think dogs can be embarrassed. Years ago we had an Aussie and he got mange on his rear. His whole rear had to be shaved. He was an outside dog that wasn't chained or confined. He always chased cars (biting at the tires) coming or going on our long driveway. When his bottom was shaved he wouldn't come out from under the parked car! Not even when cars were moving. I do believe he was embarrassed.
But anyway, I don't really have anything against dyeing a dog. I thought Nino was cute as a purple pup. And so is Pixie as a pinky.