OK. To be fair I work from home 4 days a week and did so when WH lived at home. It's the same as the office in that I take breaks occassionally to run a load of laundry (just like you might take a break to chat with a coworker). When WH lived at home we would often have conversations during my work day.
But, I get what you are saying. I will be polite and smile and won't engage unless I'm engaged to first.
I do think it would be a little far fetched to tell him he would need to arrange to come back if he needed to talk quickly. I have never done that before and don't do that when I work from home so I think that would come across as rude to him given that's not normally how I act. Obviously, if he wants to have a long drawn out convo that's a whole different matter that would need to wait.
