My workplace has a no s'mores rule.

Shortly before I started, they had a small fad of people making s'mores in the lunch room microwave. One of the trainees was a younger dude who had never lived on his own, and apparently had no idea what an appropriate amount of time was to microwave it, and put it in for 5 minutes or something, filling pretty much the building up with smoke.

We're a 911 dispatch center, so evacuating the building to go to our backup center is a whole thing, they were able to avoid having to do that but just barely.

So no s'mores.