The French have taken to checking the passports of people crossing the Channel from the UK. They never used to. It might be Brexit, but I think it follows from the terrorist attacks of the last couple of years. And who can blame them for checking?
So it's late on Friday night and they are checking one lane. Thoroughly. The queue is back to the terminal. At last they open another lane. It's moving swiftly. Very swiftly. I pull out of the first lane and into the second, passports in hand.
There is nobody in the booth.