Early one morning, as Patrick and Christopher are walking past the a Shul on Main Street, Patrick says, "So how many people do you think are in this large synagogue, Christopher?"
"There are exactly nine hundred and ninety nine thousand, nine hundred and ninety nine people in the synagogue," replies Christopher.
"Wow!" says Patrick. "How on earth did you know that?"
"Because yesterday morning," replies Christopher, "I heard one of them come out and say to a passer-by that they are one short of a milyan."