LOL!
reminds me a segment Jay Leno used to have when he hosted The Tonight Show about stupid crooks.
Police were summoned to a jewelry store by its alarm. They arrive to find a smashed window, a manhole cover thrown into the window. They search around, gathering evidence, etc. when they hear muffled cries. They find the perp down the manhole, ankle broken. It seems he managed to get the manhole cover off, get the VERY heavy cover over to the window, smashed the window then stumbled back and fell into the opening, breaking his ankle as he landed about 10 feet down inside the vault.
I guess if they were really smart they'd have real job, eh?