 When I enter the church, New Dave is waiting in the lobby. I shake his hand and tell him I'm not recording. That was a royalty-free sound effect from freesound.org, although I do have the pink notebook I bought from Target for $3. We walk past an armed guard to the gymnasium, where the Mandarin Sunday School is held. It seems notable that the Mandarin Sunday School isn't in a dedicated classroom, but an echoey gym with a basketball court.