This evening, we were killing time with Elias before his last feeding of the day, and we were just playing on the floor trying to keep him entertained. I pulled off the lid to a tupperware bin that was sitting near us, and we started beating on it like a drum, which was fun. But then I started scratching on it with my fingernails, and Elias thought it was HILARIOUS!!!! I don't know if I've ever heard him laugh like that. Justin caught a snippet of it on video to share, but really this went on for at least 5 minutes.