Apropos of this, in TFA's case they apparently never tested "rip the battery out while the system is running". (There are other, harder-to-test ways for a batte

Apropos of this, in TFA's case they apparently never tested "rip the battery out while the system is running". (There are other, harder-to-test ways for a battery to fail, but that seems like a obvious and easily-tested failure mode.)