I was wrong.
Let me set the scene: Four adults, two children. I think this situation is even more dangerous than one adult and two children because everyone assumes someone else is watching the boys. Mom and I were cooking, Dustin was working on the bathroom, and Katelyn had been playing with the boys, but had moved to another room.
After a not-so-long period of "too quiet-ness," we checked on the boys and found this:
See the tiny white plastic pieces. Each key has two of those that fit together and go underneath the top black piece.
It became the entertainment for the night...kind of like a puzzle.
Amazingly enough, we were missing not even one little piece. An hour later Dustin and Katelyn had her up and running again. They are much more patient than I.
And here are the culprits: