I agree especially with your delivery captain. He's the first one to know the engine will quit on an unknown boat for a zillion reasons, most of which he's unaware of. For the rest of us, the anchor on the bow ready to kick off in seconds, is the panic button for a number of situations that can happen anytime on a boat.

Your motor quits in a swift inlet, you're in fog and suddenly you hear surf and you don't know where you are, etc etc,

Pull the pin, kick it off and let it rip! If you can do that as fast with your anchor locker, that's good too. A lot of boats couldn't get anchored quickly enough for their ground tackle to be of any use in a panic situation, so it may as well be stowed below.