Fred and Ethel, a couple in their early 80s, are at the doctors for their annual phsical. After giving them the once over the doc asks Fred to go give a urine sample while he talks to Ethel. Ethel he says "both you and Fred are in impressive physical shape but im a little worried about Freds mental health", looking concerned Ethel asks why. Well said that doctor "Fred genuinely believes he is in the shape he is because God looks after him". "What do you mean" enquires Ethel. "Well Fred is 100% certain that God turns on the bathroom light for him in the middle of the night" explained the Doctor. Ethel looked a little less concerned and replied "there's nothing wrong with his head Doctor but at least i now know who keeps pissing in the fucking fridge".