Ways not to lock your bike

You can saw through the bead too, although snips make it easier. They'd be part of the average thieves toolkit anyway. A £1000 bike with no back wheel is still worth and fair bit and a £50 bike with no back wheel just needs a wheel off that poorly locked bike round the corner and you've got £50.

I agree, I think the arguments for the Sheldon method (not risking damage to the frame if they use it to try to twist the lock off) aren't very good, and certainly don't apply to big cities.