We had a 30th birthday party for our daughter a few weeks ago and used the trailer for folks that did not need to be driving home afterward.
A few days later I went into the trailer, to bring in the slide and and get the bedding to wash and noticed someone had flipped on both the AC and gas switches for the water heater, which was empty
The gas bottles were closed, but I figured I would be buying a new electric element, before the next camping trip.
We had out-of-town company this weekend and I set the trailer up for them and hooked up the water supply, figured I would fill the water heater up and check it out... low and behold... it worked on electric
I have no idea why the element did not burn up, but I am pretty happy that it did not.
-Brian