Effrafax of Wug was an ultrafamous sciento-magician who once bet his life that, given a year, he could render the great megamountain Magramal entirely invisible.
Having spent most of the year jiggling around with immense Lux-O-Valves and Refracto-Nullifiers and Spectrum-By-Pass-O-Matics, he realized, with nine hours to go, that he wasn’t going to make it. So, he and his friends, and his friends’ friends, and his friends’ friends’ friends, and his friends’ friends’ friends’ friends, and some rather less good friends of theirs who happened to own a major stellar trucking company, put in what is now widely recognized as being the hardest night’s work in history and, sure enough, on the following day, Magramal was no longer visible.
Effrafax lost his bet – and therefore his life – simply because some pedantic adjudicating official noticed (a) that when walking around the area where Magramal ought to be he didn’t trip over or break his nose on anything, and (b) a suspicious looking extra moon. If Effrafax had painted the mountain pink and erected a cheap and simple Somebody Else’s Problem field on it, then people would have walked past the mountain, around it, even over it, and simply never have noticed that the thing was there.