A synagogue is having a major rat problem Every time the rabbi holds a sermon, people can't help but notice that there are rats running every which way. The rabbi tries setting out rat traps, hiring exterminators, doing everything he can, but each and every week, the rats are back. Finally after one sermon, as the room is clearing out and the rabbi starts sweeping up rat droppings, an elderly man approaches him. ""Excuse me,"" he says, ""I wanted you to know that I used to be a rabbi myself, and…