My car had to sit up for a month due to a water leak I couldn't afford to fix. During that time, the battery died and water leaked into the passenger floor for about the third time since 2005. After fixing the leak, vacuuming out the water and replacing the battery, it seemed fine but then the lights came on and wouldn't turn off, the windows, which I had rolled down, wouldn't go back up and nothing will turn on or off by their switch. I finally disconnected the battery to keep it from running dead again.