I was maybe 10 or 11 at the time, and thought that some reheated pizza would be good. I put it in the microwave, and being the brazen young man I was, I set the microwave for 5 minutes. For one piece of pizza.
I walked away for maybe two minutes, and came back to see it sizzling. "No big deal", I think. When I came back from watching TV the second time, I see smoke coming out of the microwave. I poppped it open to see the pizza smoking and lit on fire.
I snatched the plate the pizza was on and ran for the door, just as my mom happened to be outside. Must have been an interesting site to see me running full boar out of the house with a piece of lit-on-fire pizza over my head, screaming like a banshee and then thowing it into the driveway.