We store our trailer under roof, and on concrete floors at our best friends farm. Rain water can't get to it. It's always plugged in, locked up and I check it weekly when we're not using it. The last two times, the TV has been on and the electric awning about half way out!! Nothing else has been disturbed and the voltage is clean to the 30 AMP receptable. Everything electrical seems to be working, so wondering if we've got a ghost or something amiss. Serious!! Any thoughts?