Taking risks with another person's vehicle is rude.
Carl's car is in the shop for repairs, so he is borrowing his brother's car for the day.
Carl wants to go for a scenic drive.
Carl drives the speed limit around a sharp corner on a mountain pass.
Carl drives 40 miles over the speed limit around a sharp corner on a mountain pass.
Carl enjoys the scenery and return the car undamaged to his brother.
Carl skids off the road, hits a tree, and damages his brother's car.