Explaining who to do should you fall off.

Good advice.

Thank heavens for belay devices these days!

Aye, when men were me (or women were women, of course...), hanging from the end of the rope, bowline around your waist slowly asphyxiating you, while you calmly apply the burn dressings to your ravaged hands, waiting for the rescue, that, frankly, is quite unlikely, but you do what you have to do...