You never, ever want to burn your popcorn in the dorm microwave because:
You will set off the dorm fire alarm…
You will create a horrendous odor that will linger in the dorm hallway for days…
And you will piss off anyone who was hoping to mooch some popcorn off you, because you burned it and now it’s no good anymore.
I learned this lesson many a time in my days at Tech.