Well, they're Southern people, and if they know you are working at home they think nothing of walking right in for coffee. But they wouldn't dream of interrupting you at golf.
“Experimental science is fascinating, but I don't want to do it. I want other people to do it, and I'll read about it.”
“In my case, the listener is often in an automobile driving to work. You can concentrate on the road while still getting an audio message that can be riveting.”