Rough evangelism

There was once a not-too-well educated and rather rough man, who, after his conversion, began pestering his minister to give him something to do. He just wanted to work for the Lord. In desperation the minister gave him a list of ten names saying, "These are people whose names are on our Membership Roll but who haven't attended for some considerable time. You contact them and try to get them back. Take some letter-heads in case you want to write to them." About a week later the minister received a letter from one of the people on the list, a physician, who wrote,
"Dear Pastor, I am really sorry for my lack of attendance at worship. I won't miss again unless it is a medical emergency. Please find enclosed this cheque for $3,000 to make up for the amount of money I should have given on the Sundays I missed!
Yours sincerely,
Dr. M.D. Jones.
P.S Please tell your secretary that there is only one 't' in dirty and there is no 'c' in skunk!"