Give a man a plane ticket and he will fly for a day.
Push a man out of a plane and he will fly for the rest of his life.
Give a man a plane ticket and he will fly for a day.
Push a man out of a plane and he will fly for the rest of his life.
This is a dark, morbid joke, because the second 'fly' doesn't refer to flying in a plane but the person falling from it (and dying) which will last for 'the rest of his life'.