This odd strip is from Everyday, a collection of comics written by my pal Chris Radtke. It, like all the others in the book, is an illustrated account of an entry on his fake blog. I'm not sure if it's still out there, but his real blog is, and it's absolutely hilarious. Prometheus!
EDIT: Let's hear it for old computers! I had the site bookmarked on the iBook, so here it is.