Pearls Before Swine by Stephan Pastis for September 14, 2012
Goat: Hey, Pig. Where were you this morning? Pig: Buying a calendar from the school supply store. I lost my old one and need to keep track of my social life. Goat: Hey... Speaking of which, you want to go to the movies on Friday? Pig: Hmm. Let me check... Nope. Can't. Goat: What do you got going on? Pig: Beryllium. Goat: Pig, you bought a periodic table. Pig: I'd say Saturday, but it's looking like Tungsten.