We
definitely need this in Australia.
Bastards are always calling at dinnertime with pushy, invasive questions about mortgages/health insurance/gym memberships and other direct marketing. I usually tell them to "hold on a minute" and then put the phone down and go eat or watch TV for half-an-hour.
I always get calls from U.S. Stockbrokers, busting my balls during work hours about heating oil futures too.
