meeting ends but neither of us clicks to end the meeting. Then a few minutes later I get on CB. Assuming they've minimized the screen I shared (which I'm pretty sure they would have by then) would it pop back up on their screen when I switched to CB?

That may or may not have just happened. I didn't type anything too embarrassing, but I'm hoping they didn't see it nonetheless. Other guy is a client, friend and BYU fan so damage is probably pretty minimal. But I'm curious.