There is nowt so ingenious as a congenital idiot. Especially if they have an ugga dugga in their paw. My son had a similar issue with his GT 86 a few weeks ago he got a puncture, took it into the tyre place on the space saver, they checked the others over, ordered a tyre & must have done the nuts up.......Next day he picked the wheel & tyre up, they went to undo it & the locking wheel nut actually sheared off. It entailed some embuggerance getting the remains off so we could remove the wheel. Son now has my torque wrench!