A practical joke or prank is a stunt or trick to purposely make someone feel foolish or victimized, usually for humor. Practical jokes differ from confidence tricks in that the victim finds out, or is let in on, the joke rather than being fooled into handing over money or other valuables. Since pranks are made to make people feel foolish or victimized, there is an inherent strain of cruelty in most practical jokes. There is a thin line between practical jokes and hooliganism, bullying, vandalism and sadism.