I hate that that when someone farts and you get a whiff of it. Think about it... You just inhaled some gross methane mixture out of somones lower GI track. You just sucked it into your lungs. Thats like second hand smoke only it came from someones butt. It can't be good for you. Don't get me wrong. I still think it's funny. I will never outgrow fart humor most men never do.