Joke: Clothes have shrunk

My son Mark was only 5 feet, 8 inches tall when he left for college
in the fall.

He worked through the Christmas holidays and didn't return home again
until the February break.

When he got off the plane, I was stunned at how much taller he
looked. Measuring him at home, I discovered he now stood at 5 feet, 11 inches.

My son was as surprised as I. "Couldn't you tell by your clothes that
you'd grown?" I asked him.

"Since I've been doing my own laundry," he replied, "I just figured
everything had shrunk."