Another so-called regulation that makes me laugh is having to use four-way flashers when you drive a vehicle airside.
How they make a 15 x 5 x 4 foot vehicle more visible in broad daylight is quite beyond me.
And of course if the said truck then breaks down, the only way of signalling the fact to the tower is to turn them off........ really handy at night!!
On the likes of Luton, the one person not used to being airside and all that entails hazards wise ,hence probably creating the greatest potential problem is the Passenger embarking or disembarking the aircraft, I don't see them having to put one on, perhaps having a jobsworth positioned at the terminal and aircraft door with a 4 inch brush and a pot of fluorescent yellow paint to daub a stripe down the said passengers as they embarked / disembarked would suffice....