No, please tell it. :)
Man from church goes to visit an elderly man.
Elderly gentleman offers him a cup of coffee and a donut.
The church man notices the dish is a little less than perfectly clean, he politely nibbles at the donut and drinks the coffee.
Old man says that was the cleanest hard water would get them.
They continue to talk..
When the church man gets ready to leave the Elderly gentleman calls out "Hardwater" and out lopes his old dog.