Change Your Font
This post at Reka-Zsuzsanna Szanto's blog about changing fonts touches on an extremely sensitive subject. I've found that you can discuss nuclear war more easily with some people than the issue of fonts.
Verdana and Ariel fans are close relatives but there is a world of difference between the Times New Roman crowd and the Comic Sans crew. [The Trebuchet advocates may be the sophisticates of the neighborhood.]