What’s the worst thing you’ve ever smelled?

When I was 13, my mom threw an amazing Halloween party for me. She decorated it so well that some guests were genuinely scared. She got various scrap pieces of meat from a butcher and put them in mason jars with “former pets” written on them.

She told me to clean up after the party but I waited too long, and they were all rotting. I dumped them down the drain and ran the disposal, but that seemed to spread the smell around. I poured bleach in there several times but it still stank for days.

What’s the worst thing you’ve ever smelled?