My t-shirts, part 43: The real reason dinosaurs became extinct

Well, what can I say? This is one of Gary Larson's most brilliant cartoons, and that's saying something. Not only is the concept of the cartoon hilarious, but the looks on the faces of those 'saurs when they're sneaking their smokes are priceless. He's the master, and much missed... even though I do like Chad Carpenter's Tundra.