An old man and his daughter go to the doctor for his monthly checkup. During examination, the doctor asks how his nightly incontinence is.
"It's fine," says the old man. "I just get up and go to the bathroom, and God turns on the light for me."
The doctor finishes up the examination, and then calls in the daughter to tell her about the God-light thing.
"Oh, my God!" says the daughter. "He's been using the fridge again!"