An 80 year old man went for his annual check up and the doctor said, "Friend, for your age you're in the best shape I've seen."
The old feller replied, "Yep. It comes from clean living. I know I live a good, clean, spiritual life."
The doctor asked, "What makes you say that?"
The old man replied, "If I didn't live a good, clean life the Lord wouldn't turn the bathroom light on for me every time I get up in the middle of the night."
The doc was concerned. "You mean when you get up in the night to go to the bathroom, the Lord Himself turns on the light for you?"
"Yep," the old man said, "Whenever I get up to go to the bathroom, the Lord turns the light on for me."
Well, the doctor didn't say anything else, but when the old man's wife came in for her check up, he felt he had to let her know what her husband said. "I just want you to know," the doctor said. "Your husband's in fine physical shape but I'm worried about his mental condition. He told me that every night when he gets up to go to the bathroom, the Lord turns the light on for him."
"Aha!" she exclaimed. "He's the one who's been pissing in the refrigerator!"