I had a relative that as he aged, he lost his inhibitions with attractive young girls. Went grocery shopping with him and left him to look for his own buys, found him later and he was "talking into the microphone planted on a very endowed and pretty young woman's boobs". She thought it was the funniest thing that ever happened to her and loved it. She was laughing her head off. I was so embarrassed. Never left him alone in public after that.
Now that was funny in hindsight.