You’ve just moved into a new house, and your front yard is looking a bit wild. Suddenly, there's a knock at the door. You open it to find a man in overalls, holding a large set of mowing tools. He’s got a somewhat odd expression on his face, as if he's been waiting for this moment his entire life.

"Hello," he says, without missing a beat, "I’m Grass Man. I’ve come to mow your lawn. I’ve studied the growth patterns of grasses for over 12 years, and today’s the perfect day for a trim. Trust me, this is going to be perfect."