A. When it doesn`t work and can`t be repaired.
This padlock is heavily corroded of that there is no doubt but there`s something about it that made us stop just before pitching it in the all hope is lost so send it to the furnace scrap box in our workshop. We sorted through our extensive stock of old keys and found one that worked so here it is in a its rusty glory. Good working order, just .. rusty. We also applied some clear wax to prevent further corrosion.