Farting to the music
You are blond and on a bus, when you suddenly fart. Luckily the music is very loud. So every time you fart, you time it with the music.
Youre beginning to feel pretty smug about your cleverness! When you start making your way to the door as you exit the bus...
everybody is throwing dagger looks at you, and you suddenly realize ............
Youre listening to your IPod!