One,
two,
three. It seems that yes, it can happen. Also seems that yes, it is a seeming rare thing.
Consider, there never will be an iron clad 100% safe guarantee regarding any technology. Also, entropy happens and even such a guarantee were issued, it would be void on the very first use of the technology.
You don't make omelettes without breaking a few eggs. You cannot pray for rain then, curse the mud the rain inevitably will bring. You can, but then you'll be reminded you asked for it.
Another favorite quote about a similar point.
"If you wish to make apple pie from scratch, you must first create the universe" -- Carl Sagan