Yipes!
I just put some grub in the microwave for a snack, then skipped off to the back fridge to get a coke. When I came back, the microwaves was popping and making weird noises and there were SPARKS inside! Also a bad burning smell!
Turns out I had left the spoon in the bowl. I had even thought before putting it in the microwave – put the spoon in the sink – and then I forgot. Luckily I wasn’t gone too long and opened it before anything bad happened!
This is your brain on Dragoncon.