yep, indeed,
he could write such a FAQ like DaveW for the Trads
man, that would be some nice lecture:
"you go to bmw for screw n°4.559.003, the man at the desk will tell you it doesn't exist,
then you tell him you show in the catalog of parts from E39, build-year 199? that it is on page 2,
down at the bottom on the left"