My wife says that I'm so immature that I act like a 4-year old. She says that she feels more like a mom than a wife. I'd have to say that half of the time, she's dead on. The other half of the time I feel more like 54 years old. My joints pop, I'm crotchety, and I make comments like, "I can't understand girls nowadays with their non-existent shorts."
Sometimes, the switch can be a day apart. The other day, I glued a quarter to the ground just to laugh while people stopped to try to pick it up. The next day, I had completely forgotten about it, and I stopped to try to pick up this quarter on the sidewalk, only to find that someone had glued it down.
