Homer: (Wearing glasses) The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side! Man: (From inside a bathroom stall.) That's a right triangle, you idiot! Homer: D'oh!
Lisa: Dad, do you know what today is? Homer: The vernal equinox? Lisa: No! It's been two weeks since you got that tape. Let's get you on the scale! (Homer gets on the scale) You've gained thirteen pounds. Homer: Disingenuous mountebanks with their subliminal chicanery! A pox on them! (discards tape)