Calvin and Hobbes by Bill Watterson for April 01, 1991
Calvin: There you are! There you are! What's the big idea giving Susie a mushy Valentine?! Are you nuts?!? She wouldn't even accept it! You're such a jerk, she always thinks you're up to something! Who are you calling a jerk, you namby-pamby goody-goody! You, you self-centered conniving brat! Hobbes: Wow, how existential can you get?