Prison Party When I was a student, I went to a Prison Party.  The room had been decorated to look like a prison and the only food being served was gruel.  (There was a bar, just in case you're wondering what the attraction was!) From time to time, people were "arrested" and "interrogated". Anyone who failed to answer all three questions correctly got a custard pie in the face. The third question always seemed to be impossible; can't think why.