How else are die-hard font nerds supposed to meet and fall in love? Good luck getting that woman to marry a guy with an arial tattoo.
http://www.mcsweeneys.net/links/monologues/15comicsans.html
McSweeney's offers us a delightful imagined rant by that most-hated of all fonts. “I'm not just a font. I am a force of motherfucking nature and I will not rest until every uptight armchair typographer cock-hat like you is surrounded by my lovable, comic-book inspired, sans-serif badassery.”
This is probably old hat for type nerds, but this chart clearly lays out some of the crucial distinctions between Arial and Helvetica. The Q distinctions are especially critical!