Yet again I got to my car (BMW E39) this morning to find it unlocked. It's parked in the street. And a couple of things stolen. The couple of quid in change I keep in a closed cubbyhole for parking etc, and the box of tissues in the door pocket.
This has happened many times in the 12 years or so I've owned the car - and at first I thought I'd perhaps not locked it and someone had just been trying all cars doors in the street. But it's not happened to my other car.
On this occasion I'm certain it was locked as I went out to it last night to put the shopping bags in the boot ready for today.
Think I remember reading thumping the car to replicate an accident makes the central locking unlock. But I've never been able to replicate this. And there's never any sign of this having been done.