There is a practice here of "bartering with prayer" -- not bartering with God, but offering prayer as barter. For example, a university student called me to say that he had no food. I was able to obtain some financial help for him, and arranged to meet him on a street corner. He offered me prayer in return. I gave him two things to pray for. Another example: I engaged the services of a professional at nearly R1,000 an hour. She e-mailed me: "I would far rather prefer you praying for my business than getting payment from you. My book debt is huge. ... Is that a good deal for you?"