I was once reading a book about a true story, when a kid sat on Santa's lap and he farted. Rather than laughing it off, Santa threw him off his lap, shouted, "I'VE HAD ENOUGH OF YOU LITTLE BRATS! YOU BIG MOTHERF***ERS!" and charged at the kid. The kid's father saw that, and he began to fight Santa, and they fought until the dad ripped the beard off. Everyone saw the elastic, and the game was given away. Some kids began to cry.
In my life, my parents told me that Santa was a fake. They seemed to decide that it was pretty dumb to tell a little kid that Santa exists, then when he/she gets older, they realize that Santa's a fake, and they get angry. Same with the tooth fairy; the dime is really from your parents, who sneak into your bedroom at night while you are asleep and slip the coin under your pillow.