Every time I see this one, I get annoyed
"Eskimos have 20 different words for snow"
Its wrong; they have 20 (or 120 or however many) words for ICE
the environment inhabited by eskimos, or Inuit, is a cold desert. Snow is a rare occurrence. The condition of ice, on the other hand, is critical. Going out hunting, it is of paramount importance to notice where the wind is coming from, if the ice will break up, form fractures, drift off and thus put the Inuit in life threatening situations. So their vocabulary reflects this
Source: a wonderful book by Barry Lopez "Arctic Dreams"
Also annoying:
people who use 'disinterested' wrongly. It means impartial (to an idea)
