Know what marketing gimmick is really going to piss people off? More than those blinking LED things that the Cartoon Network hid around Boston leading to terrorism fears?

These "landmine stickers" that Unicef is deploying.

They're laid on the ground upside-down, so the sticky side is on the top, which will stick nicely to your shoe when you step on it. (They're even camouflaged to match the type of pavement they're placed on.)

Then, when you've realized you've got something stuck to your shoe, you're supposed to bend down to pull it off, feel relieved it's not gum, and then see a special message about the world's landmine problem. Calling Unicef to complain about the sticky glue residue left on your shoe is optional.

Click below to see it in action.

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