That Horse .___. Just wonder... what if that horse... is a human being. Fortunately it's only occured in the parallel universe

I don't know how it works, but some scientists blindfolded some mothers and got them to sniff each others baby's nappies. They all thought their own baby's nappy smelt less bad than all the other women's.

Your own farts probably work in a similar way. They don't normally smell that bad and when they do smell bad to you they must smell terrible to everyone else.