Perhaps a little moldy cheese on top?

A coworker came to the office with a bunch of snacks from a trip. I’d avoided the Parmesan-sesame crackers, which someone said tasted rancid, until I was working late one night and got hungry. I took a small bite of one of the crackers: Yup, definitely rancid.

I still ate it.

And then I ate the rest of the bag.

~CH