sentences:  One day on the way home after a minor crash on the racetrack, Jacobson found himself taking a break in an irrigation ditch to have a beer with a friend while picking the gravel out of his wounds and lamenting that there had to be a way to enjoy the exhilaration and excitement of a motorcycle without the inherent danger of falling onto hard ground at high speeds.That night Jacobson sketched his "motorcycle for the water"; which, at the time, looked like a sort of powered water ski.By the mid 1960s Jacobson had quit his work in finance to pursue developing his jet ski concept full-time.