I had a punt last night and ran a little bit over time. It was with an agency, and the WG I was with said another girl should be here any minute for a booking. I then heard the flat buzzer going. I was still getting my coat on, I quickly kissed her goodbye then the buzzer rang for a second time much louder and more aggressive- for about 10 seconds. I exited the flat , and saw the punter waiting outside. I held the main door open to let him into the complex, and he just said "Cheers mate". But it would have been a bit confusing for him that the WG he had booked was late and the girl I was with was still there getting ready to leave.