Pity the Stokes.
The Stokes were out for a ride in their family SUV, a Ford Explorer, when they were caught in an absolutely literal rain of faeces.
The day had been fine, and the Explorer's sunroof and windows were wide open. The family was returning home to Ottawa County, Ohio, after a pleasant Mother's Day meal in Toledo.
Then Mr Stokes, his wife and their three children (not to mention the upholstery) were suddenly soaked in a murky deluge of human waste.
It turned out the Greyhound bus they were following had unexpectedly jettisoned its sanitary tank onto the busy highway. Most of the sickly mixture of faeces, urine and toilet paper sloshed right through the Stokes' sunroof and into their unsuspecting laps.
Most drivers would pull over at this point. But instead, Mr Stokes gave chase, without so much as wiping his gooey brow.
The family only broke off their pursuit once they had noted down the Greyhound's bus number and registration. Where they found a clean piece of paper is anybody's guess.
The Stokes have since claimed on their cheap car insurance policy. They hope to win damages in excess of £150,000.
Greyhound is yet to issue a statement.
Mike Page, Hoot spokesman and cheap car insurance advisor extraordinaire, said: "This is disgusting! I might never risk opening my car windows on the motorway again.
"But I'd be very surprised if the Stokes' motor insurance firm has handled a case of faecal spillage before," he added.