OK, so this may upset people, but I figure since I love seafood and a lot of people cannot stand the smell, I should be fine admitting this.
I worked for a company where we had a breakroom I could not use because a gentleman ate Menudo every day, and another man ate highly curried foods. The smell of the menudo and the curry would make me sick to my stomach, so I had to eat at my desk. The strange thing is, there was a rule about not cooking fish in the microwave because of the smell (fine with me, I like mine fresh and properly cooked), but intestines were fine!
I also worked at a company that had a rule that you could not make microwave popcorn at work. You could bring popped popcorn, but could not make it at work, this was for 2 reasons, being smoked out of an office when someone burnt the pop corn, and the President thought it "Smelled unprofessional" to have clients walk into an office that smelled like popcorn, said this was a place of business, not a carnival.