This image was snapped in London during a business trip last year.
Judging by the size of the bin, surrendering a knife must be a common occurrence, perhaps even daily (the bin was about 60 cubic feet, which should hold several hundred Rambo knives). But since this bin is over flowing with everything but knives, I sense there may be some questions raised at next year's Greater London Knife Bin Budgetary Round Table. Perhaps additional funding is needed to create a large-scale blade surrender awareness campaign.
Details of the program can be found at the BBC online.