Today's Doofi come from Germany.
Bungling German robbers ended up blowing a bank sky-high when they miscalculated the amount of explosives they would need to open up a cash machine.
The early morning blast at the Volksbank in Malliss, north of Berlin, left the building in ruins and destroyed windows, doors and facades of other structures for 500 yards around.
When police and firemen combed through the smoking ruins hours later they found both the safe and the cash machine in the lobby intact.
The gang had come prepared to take away the cash dispensing machine with a low-loading truck.
But they abandoned after the 2am blast on Tuesday caused the vehicle to catch fire when splinters of hot metal hit its fuel tank.
A local police spokesman said: 'They really botched this one. We are just so lucky at the timing and the fact that no-one lived in this largely commercial area.
'Initial examinations indicate a gas bomb of approximately ten times the amount of power needed to open up the cash machine.
'As it was they brought the roof down upon it, thus preventing them from getting to it or stealing money from it.'
There's more at the link.
Hmm . . . not only blowing up their target so thoroughly that they couldn't reach the money, but setting their own getaway vehicle on fire into the bargain? Clearly they haven't read Schlock Mercenary's "The Seven Habits Of Highly Effective Pirates". Rule 1: Pillage, then burn!