Partial TruthsA fast food chain once tried to compete with McDonald's quarter pounder by introducing a third pound hamburger only for it to flop when consumers thought a third pound was less than a quarter pound because three is less than four. Separately, a rash of suicides by teenagers who played Dungeons and Dragons caused a panic in parents and the media. They thought D&D was causing teenage suicides when in fact teenage D&D players died by suicide at a much