Harvey and Gladys are getting ready for bed. Gladys is standing in front of her full-length mirror, taking a long, hard look at herself. "You know, Harvey," she comments. "I stare into this mirror and I see an ancient creature. My face is all wrinkled, my breasts sag so much that they dangle to my waist, my arms and legs are as flabby as popped balloons, and...my butt looks like a sad, deflated version of the Hindenberg!"
She turns to face her husband and says, "Dear, please tell me just one positive thing about my body so I can feel better about myself."
Harvey studies Gladys critically for a moment and then says in a soft, thoughtful voice, "Well...there's nothing wrong with your eyesight."