An oldie, but a classic

 A guy was at a bar and needed to fart.

He controlled himself for almost half an hour and couldn’t leave the bar because he didn’t want to lose his favorite spot.

So he decided to turn up the music so loud so that he could just go for it and timed his farts to the beat of the music.

After he relieved himself he looked up to see everyone staring at him.

Then he realized that he was listening to his iPod.