Nottingham knockers (BR1/Southborough)
just a PSA to alert people that these folks are doing the rounds.
one of them's just come to our house and my mum answered the door, heard his story about him being ex-military (allegedly), and paid £10 for a packet of microfibre cloths. 5 minutes later, another one came by, but she turned him away.
call me paranoid, but we've had a few of these visitors in recent years, as well as several burglaries on our street. this is apparently a common way for criminals to case a house and identify where might be a good target.
if you know any vulnerable people in the area then maybe give them a heads up.