You reminded me of a particularly hilarious moment in Grad School. We were attending a mandatory cocktail party and held captive by the wife of the head of the department. Her power by proxy was a pain in the ass. Enter another PIA who was perky and coy and always winking. She, in front of all, winks at the lady and asks "When is the baby due?" thinking she had cleverly detected a bulge before anyone else. Said lady was not pregnant nor was she amused. We all excused ourselves and tried to hide in the bathroom to get over the hilarity. But I learned a very important lesson: Never ask if someone is pregnant. Wait to be told.