Re. that word 'rumpo'. I left school at 16, in 1973 and got my first full-time job, working as a quality control/development tech. at an industrial ceramics factory in Derbyshire. They had a works canteen, but it ran on a very weird system: they sent a daily list round at about 9.30am and you had to pre-order your lunchtime meal from a short menu, by ticking the right box and putting your name there, plus any filled rolls you needed at break time. Weird, but it was the 70s after all...
After I'd been there a few months, we had a new Personnel Manager start. A flash git in his late 20s (terribly old to me back then!), he really fancied himself and it appears so did others. Not too long after he started, after the canteen's closing time, round about 6 pm, he was discovered, in the canteen with the canteen manageress - an attractive lady about his age - making the beast with two backs (if you'll pardon the expression...) on one of the tables.
Word quickly got round. A couple of days after the incident, when the lunch list came round, along with the usual stuff like "Shepherd's Pie, £1.50. Fish & chips, £1.60. Stew & veg, £1.70." etc, some wag had written "Rumpo, £2" in an empty space.
I heard he was livid, but there was nothing either party could do about it!