Well some people don't appreciate the odds on being discovered or not.
Because I was too stingy to have my landie towed in after a smash up, I drove it about twenty miles in what would be technically speaking an unroadworthy condition in order to have it fixed. MOT was in force but it would not have passed an MOT in the state it was in., but then insurance company were none the wiser as I had not made a claim, in fact they were better off for it altogether weren't they.
I would wager that on a technical point almost any vehicle could be found to be unroadworthy from an MOT viewpoint at a particular given time, for instance if a bulb fails and you don't notice it.