Yeah, I already smashed one myself (outside the tank), so I only have one left, the other one I have is the titanium rod style, much better. I was looking at that the other night scratching my head going " man if that last heater gets broken it will fry some fishies". As I moved my QT out into the sun and it's not on a GFI

I have seen people put a piece of pipe over them before.............. Good idea, just never done it yet