I read about a shirt on Boing Boing that would certainly do the trick. In their article “Helvetica tee is type-nerd-bait,” they describe it as
a shirt that’s bound to infuriate your type-obsessed pals: the word Helvetica, set in Comic Sans.
It makes me shudder, and you wouldn’t like me when I shudder.
Image courtesy of BustedTees.