He sat on a whoopee cushion. The chair bursted into fart noises and the children bursted at the seams. They proudly put their faces on their desks, replaying the well-executed prank. It made their day.
But it ruined his. He worried about the fart the whole day, finding every chance to double check his pants. He left early that day after he saw an attractive female colleague plug her nose. She was dealing with allergies, but only he had teary eyes on the drive home.