and for a model train transformer(controller) that refuses to behave/function, drop it into a steel drum and beat the hell out of it!
(thats where I originally heard the idea some many years ago but the same expression can honestly pretty much apply to anything both electronics and non-electronics. umm well uhh yeah just don't try stuff a human/animal into the drum in question tho, as that might cause permanent hearing problems afterward depending on how hard you were at to beating the drum itself tho)