Counting the money in the weekly offering, the pastor of a small church found a green envelope containing $1000 in cash. It happened week after week. One Sunday he watched as the offering was collected and saw little old Mrs. Doyle put the distinctive green envelope in the plate. After the service, he approached her and said, “Mrs. Doyle, I couldn't help notice that you regularly put $1,000 a week in the collection plate.” "Why yes," she replied. "Every week me son Rob sends me cash, and I give some of it to the church." The pastor replied, "That's wonderful, how much does he send you?" Mrs. Doyle replied, "$10,000 a week." The pastor was amazed. "Your son is very successful; what does he do for a living?" "Rob is a veterinarian." "That is an honourable profession," the pastor said. "Where does Rob practice?" Mrs. Doyle said proudly, "In Nevada. He has two cat houses in Las Vegas and one in Reno."