There are a number of variants on this.
Drivers use a remote switch to disconnect brake lights - simple to unplug the switch and fit extension wires to switch & easy to reconnect after.
Ditto with reversing lights - at a junction, you come up behind someone, they switch off reverse then floor it back into you.
You cause minimal damage & the driver is OK but when the insurance contacts you, there is suddenly 4 passengers (who weren't there) all claiming whiplash & the complete rear end is mullered (because they drove the car away & reversed it into a brick wall. (or even another car using a set of plates from an identical car they also happen to own).
Another popular method is when you’re attempting to merge into traffic and a driver signals to let you in. However, the driver then crashes into your car and later denies that he ever signalled that you could move forward.
Alternatively, as you move around a corner at a busy intersection with several lanes, you move slightly into the lane next to you. The driver in that lane takes the opportunity to accelerate and sideswipes you.
I keep banging on to insurance companies, investigators, ombudsman etc etc about offering good discounts to drivers who install dash cams.
A dash cam can save your insurance a world of cash in the above instances.
OK, so mine cost just under £200 but last year it saved me the best part of £700 (I use maximum excess to reduce premiums) and my insurance company saved many thousands in payouts as everything was loaded to the other guy's company. despite this, I'm moving insurance company becauase they won't offer a discount for the camera - which saved their backsides.