B has a neat little scooter parked on a steep hill in Chelsea. She can't get it to start or the brakes won't work. We set off and she crashes into an expensive car crushing it.
Further downhill nothing is working properly. A young lad on another scooter stops to help - you are wearing the wrong kind of shoes, he advises.
The two of them start to caress each other - I tell him to move on which he does rolling sensuously over a youth and his girlfriend.