A man kisses his wife goodbye before heading off to work. He's gets into the elevator, when suddenly the elevator stops and the lights go out. He knows at that precise moment his wife has died. How does he know?
He was visiting her in hospital. She was on a life-support machine. When the lift breaks down, it's due to a powercut.... therefore, the life-support machine must have gone off too. :-)
ahhhh but, the hospital will have a back up generator, as they do, and also those life support machines have a built in battery for just such an occasion, so how shockled will he be when he gets out of that life, hopefully in 7 days time in a bodybag as a skeleton!!!