1. I am trying out for a Speed Clothes Changing contest, but I can’t tell my family because I want to surprise them with my trophy.
2. I have a rare disease called Shirt Off Syndrome that causes me to pull my shirt off in weird places like hallways and supermarket aisles.
3. I suddenly got allergic to my shirt and if I didn’t get it off right away, I would break out in hives as big as strawberries.
4. I decided to become a nudist, but I chickened out, so I’m becoming a half-nudist instead.
5. I am rehearsing for a school play in which I have to play an ancient Siamese king, and everyone knows ancient Siamese kings didn’t wear shirts.