I will never forget 2 pranks. One was on TV, the other one was masterminded by... me.

The one on TV was really genius: a saleswoman at a drugstore was given a fake new perfume by 2 fake salesmen in dark suits. She was asked by one of them not to spray it on them because they are allergic. A real customer came in and one of the salesmen offered to spray it. Once he did it, borh salesmen collapsed to the floor and became unresponsive. It was hilarious watching the poor customer perplexed over what has happened, and the real saleswoman confused...

The other prank was staged by me, but it was spontaneous. It happened when I was 13. I was sitting at a table with friends, and one of them went to the restroom. I instantly told my friends to laugh at him when he's coming back, for no apparent reason. Again, it was very amusing watching him, trying to figure out what we were laughing about. I think it's quite manipulative for a 13 years old, and it was the simplest and most successful prank I ever staged.