A practical joke or prank is a stunt or trick to purposely make someone feel foolish or victimize, usually for humor. The victim is called "the mark", "the target", and even "April Fool" if they were fooled on the day dedicated to pranks, April Fools' Day, which is held on the first day of April each year. Another day common for pranks and practical jokes is Halloween. The pranks are pulled by "the prankster", "practical joker", "gagman", or "jokester". Practical jokes are different from cons in that the victim finds out, or is let in on, the joke rather than being fooled non-jokingly to retrieve 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, or sadism. Pranks can be pulled on a person or something that belongs to the person, like their house, pet, or mailbox, etc.