This is probably also a wind up used at Cit main stealers on the gobby apprentice who thinks he/she knows it all.
Having previously stiched him up with going to the parts back counter for a long weight, set of tappet clearances, left handed screw driver, and axle stand, etc then after a suitable period of time, they would trick him with the what would seem more plausable trick(s).
Like getting the brake fluid, and servo for an Xantia!
It would also be a test of if he/she has learnt anything previously about the vehicles.
Mind you he/she might meet their match, with a matching counterpart serving on the back counter.
I.E Dumb & Dumberer!
