While whistling a song or melody, the ambush whistler will hear you and whether consciously or unconsciously start to whistle a completely different tune causing you to become distracted and off-key. Common in the workplace, it is also known to happen during elevator rides, cook outs and lawn work.

The situation that unfolds when a parent comes unexpectedly and without invitation into the room of their adult kid, who i still living at home, to tell them to get a job or look for employment right now.

When your lactose-intolerant S.O. eats a lot of Turkey Hill ice cream and then farts underneath the covers that night.

When one internationally fails to give fair warning to others that they have decimated the toilet with horrible oder. Resulting in persons walking in only to retreat in disgust.