I was driving on the northern disused taxiway road on my way to the RW08 threshold lights one sunny day, when a couple of DOE (or whatever the MoW/MPBW called itself then) numpties in their vehicle pulled out from a side road in front of me. I could see that both were wearing those stupid yellow jackets which were causing glare and reflection on the car windscreen.....
The wretched things cause more trouble than they're worth. Although it amused me to see one with the logo "I'm wearing this to protect someone else's ar$e".
The Stn Cdr asked one pilot why he was wearing a Virgin Atlantic logo'd hi-viz tabard and wasn't terribly happy with the reply "Getting ready for my next job, sir!". But he did go to Virgin, which is more than the Stn Cdr did.