MANKATO, MN—A gentle prod elicited a disproportionately harsh retort Monday, when office wag Kenneth Adamle was loudly told by coworker Bryan Lemon that at least Lemon's wife didn't cheat on him with a floor-tile installer. "Holy shit, I just said he's putting on a bit of a spare tire," a stunned Adamle said after the exchange. "What's up his ass that he's bringing up my divorce?"