Do not leave popcorn unattended in microwave

A few weeks ago I was playing around in GIMP, the open source graphic image manipulator. I read some tutorials on how to make starfields and nebulas. Tonight I read a tutorial on how to make a planet.

I felt like munching on a snack and I'd already had some ice cream so I found a bag of popcorn and put it in the microwave oven. I don't trust the Popcorn setting and I recall from past experience that 2:30 is about the amount of time that it takes. So I punched in 2:30, hit Start, and went back to my laptop to build my first planet.

Two and a half minutes the microwave beeped. I went back to the kitchen and opened the microwave door. Smoky smoky smoky! There was a nice big burn mark on the paper bag. So 2:30 is too long for this brand of popcorn. But it is enough time to make a decent looking planet.