Well you certainly will feel less safe after seeing this. A locksmith shows just how easy it is to open a Masterlock with a  few taps of a hammer (and it's a tiny hammer).

Locks and keys have always intrigued me, but it's really not more complicated than moving the tumblers a certain distance or in a certain order. When they line up just right, the lock is open. Well apparently tapping on a MasterLock causes all of the tumblers to engage and bam..the lock is open. Take a look at how quick and easy this guy does it.

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