Notice the Blaze Orange vest that Glyn has on? It is on everyone here in Australia. You can't walk anywhere without seeing blinding orange or yellow. The Australian's are known for their safety or at least their attempt at safety. The down side of that is the barrage of safety vests thrown at you as you try to get something done. We've pretty much determined that the vest is our permenant uniform - if only it had an IBM logo on it.
For me, once sensory adaptation sets it, I don't recognize them anymore. More to the point, if everyone is wearing a safety vest on a work site isn't that the same as everyone not wearing one?
Regardless of my rants, I think I actually make the vest look GOOD!