I have been in so many pits in my lifetime and have met so many mughanics who think that being able to open a toolbox if enough qualification to weild a wrench.
Pit crew is their proper name and nearlly always they are bludgers who have got on the good side of a competitor mainly to get free access to the meet.
The number of times I have been asked by would be mughanics to pit crew for me, I could not count if I had 10 hands.
If anyone offers me information in the pits at a race meet, I humor them and go my merry way and promptly forget their input.
I am not saying that all pit crew are hangers on or idiots, but all in my years of experience, most pit crew/mughanics don't know crap from cardboard.