I've been consistently freaked out by how much work I'm doing on the days when I'm stuck in the library with son #2's laptop. I sit there in a study carrel with nothing to look at but the screen from before 8 a.m. till after 12:20 p.m.. There's no way to check e-mail, no way to go off on a net-surfing tangent. No dogs, no cats. I can't get up and wander around or even go get a drink of water unless I pack everything up and carry it with me. So I sit and work. And it turns out you can wrap your head around quite a sizable piece of your ms in that amount of time, when there's nothing to do but concentrate on it. However, I think I might go nuts if I had to do it more than once a week. And I'm pretty sure I wouldn't last that long if I didn't have to wait for son #2 to get out of class. If it was up to me, I'd probably leave whenever I felt restless. But with forced compliance, I have to ignore the restlessness and bring my attention back to the ms. It's a choice between that or staring at a wooden carrel wall for a few hours.