Were you aware that if grapes are cut almost in half and put in the microwave for several seconds they cause a spark? How do I know this? I'm glad you asked. The teenage guys figured it out in our microwave last night. I do admit, though, it was humorous to see 10 people hovering around the microwave trying to see the show.
When I was writing about our activity, I knew I was forgetting something, and it came back to my mind at some point today.