I bought a box (10 mini packs) of Orville Redenbacher microwave popcorn.
Every time I make one (keeping in mind that I remove the packaging as directed) a small bit on the front lip of my microwave starts sparking like crazy.
It doesn't do this with any other type of popcorn, or with any other foods. Obviously I can just not buy OR anymore, but I'm curious. It's done it with every pack and I only have one left. The microwave at work did not do the same thing.