Calvin and Hobbes by Bill Watterson for April 02, 1991
Calvin: So it's a fight you want, is it?! Why, I'll tear you limb from... Yeah? Yeah? Oops! I had an evil thought! Hobbes: Another casualty of applied metaphysics. Calvin: My ethicator machine must've had a built-in moral compromise spectral release phantasmatron! I'm a genius!