Yip the Hi-viz hung over the back of the office chair to keep it in good order. And not one mark on it, those boys wear them with pride. 
No, but I’m fairly sure that no-one ever died from wearing one 
I always wear mine, especially when doing trailer swaps. Oil on hi-viz would otherwise be oil on my uniform and potentially oil in my car. Can always get another hi-viz, we get them free anyway.
Tend not to wear it on the road though. Unless I’m only driving a few mile.
The things are a nuisance, especially when you jump of the back of the lorry and it’s hooked up on some steel and nearly pulls your ead orf on the way down,… yes I know I should’nt be jumping of the back of the lorry
Can not see the logic of wearing a hi-viz while driving all day.
You get to know where trucks are based and how far they are going.
I am sure some drivers sleep with them on in the cab and at home.Even on their day off,must put the hi-viz on.
Brain washed.
I was in the Red Lion,four muppets with them on.And they were staying over night.
Eating a curry with hi-viz on.
The birds love that look.
Put mine on IF and only IF I’m doing something in a higher risk area. e.g. recently stopped at Southwaite services to investigate indicators problem so stuck hi viz on while fiddling with front lenses and a screwdriver. (don’t tell the unions but I fixed it too!)
A lot of drivers high-viz more resemble a filthy rag than a piece of safety clothing & thus offer them pretty much no extra visibility. The reflective strips on a new/clean high-viz do have their merits in a dark yard.
Annoys me when the greasy high viz brigade wear them whilst driving, dirtying the seat 
So far I seem to be the only chap on here who’s life HAS been saved by a Hi-Vis. Mine’s one of the thick padded ones and it’s saved me from dying of hypothermia or pneumonia on many cold, wet winter nights.