Taking Monetary Offence At A Facial Misdemeanour

My brother was feeling a bit glum about still being positive for Covid so I agreed to go for another socially distanced walk. We were both feeling a bit lethargic - too much festive food and drink combined with the ongoing and after effects of Covid - so we really didn't venture far, just a small circular walk through a nearby tree-lined estate but it did still manage to raise our spirits.
I must admit I wasn't expecting to capture anything until I saw this devilishly smiley/sinister face staring back at me from a street sign with it's pony (Cockney rhyming slang for £25) based monetary warning of a perceived facial misdemeanour! :-)