My brother recently moved out of state and left a full suspension mountain bike in a storage unit here. Yesterday he allowed me to go pick it up so that I may use it. He left a cable lock on it, and I am sure that he took the key with him. I didnt want to leave his lock on there, because I dont want people to think I stole it. So I went in my toolbox and got a tube cutter. Some of you may not know what a tube cutter is. It is a small tool that is normally used to cut thin tubing such as brake lines, metal fuel lines, etc. Now, the cable lock my brother had is a Master Lock type. I tried picking the lock, but there was no joy to be had in that endeavor. I do have a hacksaw, but it was down in my basement and this was around midnight last night so I didnt feel like going down to the basement. Its outside entrance only, and the doors are kind of loud. So I decided to see if the tube cutter would cut through the cable, and it did. So you can literally cut through a cable lock with a tube cutter that can be picked up at any auto parts store for a few bucks. Moral of the story? never use cable locks if you care about your bike. I have a heavy steel chain to lock up my motorbike.