Though I never leave my bike in the street I do carry a cable lock with me for popping into the shops etc but only for a couple of minutes. I also use it to attach my bike to the bike carrier in case I stop at motorway services or whatever.
However I think a lot of people think that these locks are secure enough to leave their bike all day. A lad who works in a different part of the building grabbed me a couple of days ago and told me he's lost his keys including the only key for his lock and did I have any tools that could help. So I asked him which type of lock and he told me it was a top quality cable lock and he was probably being a bit optimistic and I wouldn't be able to cut it.
Hearing that I grabbed a pair of Felco cutters I have in work and told him I have it off in seconds. Sure enough we headed outside and I had it cut off straight away with one cut. He was shocked and bought himself a D lock about an hour later. I didn't have the heart to tell him they could also cut steel up to 10mm thick.
http://www.felcostore.com/order/f-c16?referer=wirecablecutters
However I think a lot of people think that these locks are secure enough to leave their bike all day. A lad who works in a different part of the building grabbed me a couple of days ago and told me he's lost his keys including the only key for his lock and did I have any tools that could help. So I asked him which type of lock and he told me it was a top quality cable lock and he was probably being a bit optimistic and I wouldn't be able to cut it.
Hearing that I grabbed a pair of Felco cutters I have in work and told him I have it off in seconds. Sure enough we headed outside and I had it cut off straight away with one cut. He was shocked and bought himself a D lock about an hour later. I didn't have the heart to tell him they could also cut steel up to 10mm thick.
http://www.felcostore.com/order/f-c16?referer=wirecablecutters