Splitting the Offering

A rabbi, a minister, and a priest were having a discussion about how they split the offering money between the church and God.
The rabbi said, "I take a piece of string, make a circle on my desk with it, and throw up the offering plate. Whatever goes inside the circle goes to God, and whatever falls outside the circle goes to the church."
The minister said, "Well, that's not bad, but I have a better way. I halve my entire office with a piece of string, and stand next to it. I throw up the offering plate, and whatever goes on the right side of the string goes to God, and whatever goes on the left side goes to the church."
The priest nodded, then said, "Well, that sounds pretty good, but we have a foolproof way of splitting the offering. I stand in the middle of my office, throw up the offering plate, and yell, "Keep what you want!""