Ten miskeyings and it's toast ...
I suppose there are a few environments where that's OK, but I hope that this feature can be disabled.
Imagine what happens if a baby or child gets hold of it. Or even a cat. Or if a piece of grit gets into one of the buttons.
If the PIN is eight or more digits, there's little practical reason to self-destruct. Chances of successfully entering enough random keys at one per second are too small to matter.
Biting the hand that feeds IT
