Stolen bikes

was a Abus Granit Steel-O-Flex 1000. nothing on the floor. doubt they would have cut it? picked the lock? it had done me really well untill last night.

No, it hadn't. You were lucky that a serious thief hadn't happened by before. There's been some excellent advice about locking on this forum for some time, now. A chain lock as sole or primary security is just not good enough.

i have a second one, i will continue to use it for now......

Then it's probably only a matter of time before you buy a third one.