Some myths in life are perfectly fine to be left as-is. For example, even the most practical of parents don’t want to be responsible for shattering their young child’s belief that Santa Claus lives in the North Pole with a tribe of friendly reindeer and elves. And what parent hasn’t silently said a “thank you” to the great soul who invented the Tooth Fairy. Seriously: is there a better bargain in the world than spending a few bucks to have a child look forward to losing a tooth vs. dread it?However, there are some persistent myths that aren’t fun or...