I was a Plt Off for less than a week, all of which I spent on leave...
I also did my four days' hard graft as a Plt Off, before hard-earned promotion to Fg Off, and still have the 1250 with the lowliest rank more than 9 years later (no point getting a new one - in the original photo I had hair and a tan!)
Was pleased to hear that one of my IOT colleagues, who graduated as Flt Lt after many years in the Army, was able to cause a stink at Halton, doing the Admin Sec course, by calling the Flt Lt instructors 'mate' - apparently they liked to make the Plt Off and Fg Off studes call them Sir, but in his case, there wasn't much they could do!