Joan's volunteered to take him for an hour if I need it. We'll have to see. I think we'll be okay, as the mute button is damned fine on the remote headset, so long as Jet doesn't just yank it from my head.
He's gotten really strong and really curious about things he hasn't seen before, so his automatic reaction is to rip the headphone off my head to suck on it and see what it really looks like. John says that's how babies see how things look, by tasting them. I couldn't argue with him.