This is a lovely historic, Victorian, example of a “bossy” sign. It’s in Great Guildford Street, Southwark, London. I walked past it every day on my way to do Jury Service at Southwark Crown Court, which was a little ironic. No high tech crimes for me to struggle with. Just Ruffians, Pickpockets and Wankers. Exactly the sort of people this sign sets out to deter.