Your best practical joke?

[IRISHMAFIA]

Was at a week long clinic/tournament in FL. First few days were classroom and mechanics and at the initial orientation which involved not only information on the clinic, but talked about where to eat and bragged about the hotel's pool and free breakfast. He then announced that we would start the next three mornings at 8:00 AM to the moans of a few.

I raised my hand and said that would be too early because the hotel's complimentary breakfast didn't start until 8:00 AM. To the pleasure of everyone, the UIC relented and changed the starting time to 9:00 AM.

That evening, the UIC approached me in the hotel lobby. He wondered why I had a big, sheepish grin on my face until he got close enough to read the sign on the wall above my head which read "Breakfast served from 6:30 AM to 9:00 AM".

Luckily, Henry has a sense of humor and kept the starting time at 9:00 AM.