Perhaps, in the interests of saftey, all FJ aircrew walking out to their jet, should inflate their life vest. This will cover the Hi Vis issue, and also allow vital tracking of their movements by the SAR forces, any trips or minor falls will have added neck protection and the chest is better protected too. In the event of a tidal wave, or sudden increase in sea level, they will also be fully protected.
On entering the cockpit, they must strap in and then eject, to save any time in the event that a stray fuel bowser will roll into their aircraft.
Sorted... a perfectly safe flightline........
Advo