The Shifted Librarian pointed out a fantastic game called Word Shoot. Holy crap it's so fun! I warn you that it makes noise for those of you still at the office. But it certainly does beat the pants off of Mavis Beacon.
I found that when under pressure, trying to type fog comes out gof EVERY TIME. And I can't tell you how many times I typed pissy instead of piggy once the tanks started coming after me. As Hudson would say, They're coming out of the goddamn walls!