"I hate the thought of my punters being upset for no good reason before flying"
Chuffer - it is very kind of you to have such consideration. But, as ex-aircrew-now-frequent flier, I am far more concerned that YOU and your colleagues should not be upset for any good reason before flight.
The arrogance of these bottom-fondling failed wheelclampers and toothpaste checkers is frankly absurd. Time that the whole $odding lot of them were booted back to the dole queues whence they crawled.....
As for the anally-retentve DfT - just what planet are they from?
Regarding standards of security:
UK - sometimes shoes and belt. Always long queues.
FRA - sometimes shoes, sometimes belt, sometimes watch. Presumably these peoples' ancestors collected gold teeth?
Other German airports are far more friendly and sensible than the cretins at FRA; I now try to avoid the place unless there's no feasible option.