I got pulled by the Police one night and got a 7 day wonder, it was only after the event (as it was New Years Eve) that I realised that I genuinely had forgot to renew the MOT!

I just went and re-MOT'd the vehicle and told the Police that I'd 'lost' the current one so went and got it tested again to prove it was roadworthy (luckily it passed, it was a G Plate X3RI ), they said they would send it to head office to deal with and I'd get a letter in the post, some while later the letter turned up and said as it was your first offence and the vehicle is now MOT'd and was clearly roadworthy at the time of the pull then they were going to let me off!