Every time you lick a stamp, you're consuming 1/10 of a calorie. However, since the glue used on stamps also contains 1/10th of a calorie...... stamp glue in most countries in the world is vegetarian, by the way.
Still on the rich topic of dysfunctional or just plain silly beliefs, vampire lore is Count Chocula full of them. For example, according to folklore there are a number of ways to protect yourself from vampires, including the ever-popular wearing of garlic or a religious symbol such as a cross. You can slow a vampire down by giving him something to do, like pick up poppy seeds or unravel a net. (They're reportedly quite compulsive.) Cross water and he can't follow. If you can find the body, give it a bottle of whiskey or food so it doesn't have to travel. If that doesn't work, either shoot the corpse (may require a silver bullet) or drive a stake through the heart. And remember, the vampire won't enter your dwelling unless invited.
