What's the worst scent you've ever smelled?

[knickerbuck]

Probably the stink bombs of secondary school.
Glad the smell wasn't too difficult to wash out.

A lot of people say cat pee and cat shit. I grew up with those smells, and I'm probably too used to the smells to know if they're worse. Pretty bad when changing the tray though.

you know why cat sewage smells so bad, because they hardly eat anything other than protein and you know how much protein metabolites (amines) smell so badd ..