I absolutely despise myths with all my might :P It's interesting some of the stupid things people will believe.
I especially loathe nature myths.
I'm sure everyone has heard about cottonmouths being so aggressive they chase you, bats flying into your hair, and goldfish having a three second memory span (all of these are FALSE!!!)
although I do sort of like some myths becuase they're just so stupid. For example the myth about milksnakes going into barns at night and drinking milk out of cows' udders, etc...
so... this is your chance to dispell some myths and tell us which ones you like/dislike.