Ways not to lock your bike

I arrived at work and found this in the middle of the road.

At first I assumed that the bike stands had been crashed into and the bike must have been locked to the stands. On closer inspection the bike isn't locked and there isn't any sign of a broken lock. There's also a helmet, I'm not sure who this belongs to.

I hope that the bike hasn't been involved in an accident with a vehicle and the bike stands as if this is the case it looks pretty nasty.

Anyone know more?

What is it that attracts white vans to trash pink bikes?

^ Shocking pink.

The one in the OP is, arguably, light purple.