There is an element of a good safety culture which involves a team.
Train the wing runners to visually check the glider over incluing a
pilots dive brakes and tail dolly when approaching the glider and
before leveling the wings. A simple word to the pilot just after
hooking up, dive brakes and dolly check can save tha day. Same with
noticing that low tire on the tug or a new oil slick on the fuselage.
A heads up wing runner can save they day but they need to be trained
to do this kind of thing in a culture that permits it.

Many years ago I moved wiggled the elavator of a friends ASW-20, now I
do not toch other peoples gliders as a rule, but in this case it was
disconnected - he was strapped in and next to launch on the grid. Now
that was an interesting conversation.

John Seaborn
A8