Ways not to lock your bike

Sure the lock could be slipped over the bars on this if not it would be easy to remove them briefly then put back on and ride off.

This was near brick lane last night, see some others but started to get a few looks so moved on before someone thought I was on the theif.

Obviously fron wheel would need to be removed quickly!

Huh? In what way is this a fail, other than not securing the wheels?