Clever phrases like 'Kids in the back seat cause accidents. Accidents in the back seat cause kids' are called syntactical inversion, reverse parallelism, or chiasmus.
Remember John F. Kennedy's famous "Ask not what your country can do for you, ask what you can do for your country."
It's not the men in your life that count, it's the life in your men.—Mae West
Some cause happiness wherever they go; others whenever they go.—Oscar Wilde
Foreign aid is taking money from the poor people of a rich country and giving it to the rich people of a poor country.—Ron Paul