On last Friday, I was locked out of the house because of a jammed door lock and had no choice but to call in a locksmith to help. After some drilling, the locksmith managed to remove the door knob portion of the lock. Following that, he spent quite a bit of time to remove the remaining parts which caused the jam. He said it wasn't an easy task when it came to my door lock because a bar snapped and got lodged in the opening.
Anyway, after about an hour, I finally managed to get into the house. Although the locksmith commented that the Nelon brand is not good, the door lock still lasted about 7 years. I shall see how long the new Yale door lock will last.
