What the funniest superstitions you have heard?

One of the superstitions that many people believe in the world is never to give gloves if you do not expect them to be rewarded. Giving someone a glove and then the recipient does not reciprocate his gift, resulting in unlucky lifetime. Both for the giving and the receiving.
Superstition about gloves is not just this. In some countries of the world it is believed that someone takes a glove that is intentionally dropped then the person will drag his soul mate. Make singles, do not ever think to throw your gloves on purpose.