A convenience feature that could have killed you. I know some engineers who design life critical safety systems for a living, and they all said something like

A convenience feature that could have killed you. I know some engineers who design life critical safety systems for a living, and they all said something like this was going to happen when this product first came out. The example one of them gave was it was like a AED that could also let you recharge your phone, a moderately worthless feature that could only ever cause the failure of critical components.