What is the most hideous/horrible/ingenious practical joke you have ever pulled in a planning office?
Years ago when I got a new job, I asked the new boss to send me a copy of his jurisdiction's comp plan so I could read it before I moved. One of my co-workers wanted to take a look. So, then I was reading it and saw, in the Recreation element, "Acquire Loren Hamm property". Mr. Hamm was the most godawful citizen I had ever had to deal with. I ran screaming into my boss's office, "Oh my God, he's there, too!" and he was SO sympathetic. When I started my new job, I asked the new boss about Mr. Hamm; he looked at his copy and said "There's no Mr. Hamm in my plan". My old co-workers had exactly copied the font and inserted the policy just to make me nuts.