In the `Airframe Workshops` at Halton there used to be an early `Sycamore` helo,in natural metal;if one was found to have `been skiving`/messing about,etc one was sent to spend a little `time-out ` on the `naughty step`,in this case half an hour with a roll of `Wadpol`.?,polishing the helo until it shone..It probably weighed a lot less as the `skin `got thinner,so I have a lot of sympathy for the guys/gals who polished that Connie,,!