Whenever the postman needs me to open the door he rings ding-ding, ding-dong. Two rings in quick succession. Quite often he will see me in the lounge first and then he'll still do two rings twice! He'll see me wave so I know, he'll watch me stand up and he'll still ding-dong ding-dong on the door. It's so irritating.
Normally happens while my toddler is asleep, but I just don't understand it-it drives me mad!