Bicycle U-locks

• 1). Get your jack from the trunk of your car.
  
  
• 2). Spray the lock with compressed air, or preferably liquid nitrogen, if you can get ahold of it. Wait until the liquid nitrogen has finished bubbling. The metal should now be brittle enough to break.
  
  
• 3). Put the jack through the U-lock in its unexpanded condition and start to turn, or pump, the handle.
  
  
• 4). Keep turning the handle until the U-lock breaks open.
  
  

Padlocks

• 1). Try to cut the padlock open with a small hacksaw. If the metal is too tough for this, move on to Step 2.
  
  
• 2). Spray the lock with liquid nitrogen and wait until it has stopped bubbling.
  
  
• 3). Hit the padlock hard with a large hammer. This should be enough to break it.
  
  

Yale Locks

• 1). Give the door a good hard kick where the lock is. This is sometimes enough to pop open a weak Yale lock.
  
  
• 2). Get a cordless power drill.
  
  
• 3). Start the drill in the widest part of the key hole and press hard to drill on through. This will break apart the pins inside the lock and the lock will open.