Food that smells bad to you

OnionSoup thought this was worth mentioning said
4

So today’s offer with Maple Syrup, is my arch nemesis. Smelling maple syrup makes me extremely nautious. Can’t eat in a room where I can smell it. However, I know lots of people who get hungry at the mere suggestion of the stuff.

Vinegar is the same, vinegar is obviously very versatile, and I use it when cooking occasionally too, but I always gag a little when adding a little vinegar to my sauces… yet other people love vinegar…

What common food smells do you despise that other people seem to love?