Recalcitrant Helper

Every good bike shop should have one of these but most have not:

re·cal·ci·trant

Adjective
Having an obstinately uncooperative attitude toward authority.
Noun
A person with such an attitude.
Synonyms
insubordinate - contumacious - refractory - disobedient

A person with such an attitude.
Synonyms
insubordinate - contumacious - refractory - disobedient

all the above apply!