Why does fart smells awful ?

A Scientific Name For Fart is : FLATUS!

So in future if you fart in front of a group of people, just say, "SMELL MY FLATUS!''

Facts about FLATUS :

1. A Healthy Person Farts 16 times a day.
2. People Fart Mostly In Their Sleeps.
3. Farts Are Explosive.