I've only come up with two possibilities so far:
-the Eskimo/snow-word fallacy
-how other languages (e.g. Chinese) do not have an alphabet like English does, and why this means you can't get the name "David" or "Mom" tatooed so easily
But I need more! Can you help?
EDIT: Thank you so much for everyone who responded! I've got more than enough fodder for my bulletin board :-)