In bygone days, a thin man insulted a fat man. The fat man challenged his tormentor to a duel with pistols.
On the day of the duel, a debate ensued about the unfair advantage held by the thin man because he was a much smaller target. Finally the thin man came up with a solution.
“Let the outline of my figure be chalked upon your body,” he said to his opponent, “and any shots of mine that hit outside the chalk lines, we won’t count.”