OK, I openly admit that I stole the title from Gizmodo, because frankly I don't think there's a better one.
In offering this fan-effing-tastic yellow caution sign, ThinkGeek has made me rap myself in the head repeatedly, chanting "I totally should've thought of that!" As a fan of roads, signs and road signs, I think this little guy is just brilliant.
The little stickman is infinitely posable, allowing you to warn those around you of imminent relaxing, breakdancing or standing akimbo. I just need to think of a little "gift-giving" pose, because someone's definitely getting one of these for Christmas.