That&#x27;s a good point!<p>I guess more broadly, I was thinking about a scenario in which the lock device dies, and making the point that conventional devices aren&#x27;t foolproof either. In this case, the fool being me, and the proof being locking my keys in the house.<p>So, any lock can fail, but I&#x27;m not really concerned as long as it has a reasonably low failure rate. We&#x27;ve tolerated conventional lock systems failing (via user error mostly) for a long time.