It's wrong to smoke in someone else's car.
Lester, who smokes, borrows his friend's car, which has never been smoked in, and drives an hour away on a trip.
Lester wants to have a cigarette.
Lester pulls over and has a cigarette on the side of the road.
Lester lights a cigarette while he's driving and is careful to put the ashes and cigarette out of the window.
Lester's friend's car is clean and nice-smelling, making Lester's friend very happy.
Lester's friend gets in the car later and smells the cigarette smoke, making him sick and upset.