I can't believe I missed this. It might be the sweetest thing I've ever seen. First, a little background. The Westboro Baptist Church is a truly creepy cult (really, just a couple families) that goes around protesting things like dead soldiers' funerals with signs that say things like "God hates Obama," (and much worse). Real lunatics. However, a protest at Twitter headquarters in San Francisco was totally deflated by a bunch of wacky creative types that stole their thunder. I'm reminded strongly of Reed College.
Awesome. Made my day. Check the link for some more photos, including a unicorn!
UPDATE: Bonus prank by a police officer on her own sergeant here.