Well if they're going to be quiet after I turn off the sources of noise in here, maybe there's my solution. They'll never know when or if I'm recording. I don't know, though. They can do it quieter and I'd still hear it, but too quiet to be picked up on the recorder.

I'll see. Best thing is to get them at it tomorrow morning. If I can. They do it often, but sometimes they don't do it for like 30 or 45 minutes and there's that interval still recorded.

ETA: he has his music on now, and that's getting recorded. Not sure if they'll be silent now for two hours.