"Can't keep up, dear brother?"
"This is absurd!"
"No, it's chopsticks."
Sherlock hasn't been able to make new friends at school yet. He doesn't tell, but Mycroft knows he is upset about it and thinks a little bit of a piano lesson at the local Toy Shop can do the trick.
Should be paying attention to class. Doodles kid!Sherlock and old!Mycroft instead.... Also, this song was in my head forever.