Imagine you are blonde...

[rebbonk]

You are blonde 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.

When you start making your way to the door as you exit the bus everybody is throwing dagger looks at you, and you suddenly realise............

Spoiler:

You're listening to your IPOD!