I don't want Him to know I'm here.
A distinguished clergyman and the elders from his congregation attended an out-of-town meeting that did not finish until rather late. They decided to have something to eat before going home, but unfortunately the only spot open was a seedy bar-and-grill with a questionable reputation.
After being served, one of the elders asked the clergyman to say grace. 'I'd rather not', the clergyman said, 'I don't want Him to know I'm here.'