The driving lesson location wasn't inside a driving school but required travel to a specific place.
The instructor didn't even know the destination; he was simply told to wait at home, and at noon the next day, a car would come to pick him up.
For an instructor, it was a first to experience being chauffeured in a special car.
The next day at noon, a black sedan indeed pulled up at his front door.
Inside were three men in black, one driving and the other two escorting him on the back seat, constantly observing the surroundings as if guarding against something.
It wouldn't have been unusual, but the instructor accidentally noticed that these men in black were all armed!
The men in black hurriedly assured they were armed out of necessity to protect an important figure and asked the instructor not to be afraid, as they weren't dangerous people.