Wrinkle Removal

A man of 77 went to the hospital to get a radical new surgical procedure done where they stretch the skin and pull all the wrinkles up onto the top of the scalp making you appear years younger.
On his way out of the hospital, he met an old friend who didn’t recognize him at first.
“Rob, is that really you?” said the friend. “You look years younger. I didn’t know you had a dimple in your chin.”
“It’s not a dimple, it’s my belly button” said the old man and his friend laughed.
“If you think that’s funny, try to guess why I’m wearing a scarf in the middle of the summer!”