Thanks everyone for the warm welcome.
Ed, thanks. The bike was all standard when I got it and now I've got it exactly how I wanted it. I do have it chained, an Almax series 4 chained down to a ground anchor so unless they turn up with a petrol powered angle grinder, they will leave empty handed!
Grumpy, yes... I've known that nugget for a long time, some would say for far too long!