Ways not to lock your bike

There is a guy who leans his Bianchi up against the bike rails outside work but has stopped actually locking it to them.

I dont know if he has lost his lock or what.

I'm half tempted to move it one day and shit him up.

I know, it's outside our work which is not on a busy road or anything, but we do have kids from Moss Side/Hulme walking through the car park going to and from school every day.

I'll try and get a picture at lunch time.