Just pray you never have any in-game friends you want to do stuff with.

I can just barely get the alt-131 down for a couple of my guildie's mains. If you ever wanted me to invite you to raids with those names it would take me 30 minutes just to figure out how to type them out.

I can just see it now...

"Hey, I've got a friend who wants to bring a lock to our Naxx25 run!"

Raid Leader: "Cool, that's exactly what we need to complete the group! What's his name?"

"Um... nevermind, forget I said anything."