And I remember the 'opfor' intruders lying in the long grass on the airfield at night with the RAFP searching for them by the lights if the Landrovers.
Only when there was a near miss was the danger recognised.
But, one asks, are the hi-viz vests cleared for flight? Inflamable? Is there an authorised stowage?
May be there should be a 'dresser' in the groundcrew to dress and undress transient aircrew.