I'm a big silly newbie and I'm not sure how to properly use this lock that I bought with my bike a few weeks ago:



I cannot locate the instruction (if it ever came with it) and I usually just use the u-lock through my front wheel.. but i just don't understand how the cable is supposed to give added security; if someone cuts through your lock the cable becomes loose; what's the point?

I'm just a big worrywort because I've already got my bikes stolen twice :S

thx