the doctor. RE: kidney stones.
Stopped for fuel:
A 240D was on the other side of the island, with a teen boy behind the wheel crying.

Daddy loaned him the car for the day.
While in the school parking lot; the front and rear star where broken off.
Someone poured bleach on the hood and roof.
He was crying because he put gasoline in the fuel tank and his dad was going to kill him for that mistake.
Two gallons of gas in 1/2 tank of diesel.
The boy was so shook up that he could not start the car.
I fixed a breather tube leak; it was spewing oil on the exhaust.
I had four gallons of filtered used hydraulic oil in my trunk; we filled his tank with this and took the 240D for a drive, to mix it up.
Gave him a business card and wished him well.