If the toothbrush I just bought has soft bristles, then medium must be made of sharpened metal spikes, and whatever is above medium must deliver tiny razor-toothed demon microbes into your mouth to eat away your gums.
I've had mouth surgery three times, I'm a bit picky about this.
[Update, May 28, 2004: it's so strange that after the move from Blogger to MT, which occasioned much deleting of posts, this ended up being my first blog entry.]
