Burger King's Flammable Paper Wrappers Cause Microwave Fire Hazard - No Warning Provided!

I had a scary experience with Burger King's paper burger wrappers not long ago. I didn't know these wrappers, which seemed harmless, were flammable, and the packaging didn't say anything about it. It was too cold when my order arrived, so I heated it up in the microwave. The burgers' paper wrappers caught fire when I put them in the microwave, I didn't get how a burger wrapper could catch fire in the microwave. Even worse, there was no warning on the box that there was a fire risk.