Guus Bosman

http://www.websters-online-dictionary.org/pe/persnickety.html:

1. Used colloquially of one who is overly conceited or arrogant; "a snotty little scion of a degenerate family"-Laurent Le Sage; "they're snobs--stuck-up and uppity and persnickety".

2. Characterized by excessive precision and attention to trivial details; "a persnickety job"; "a persnickety school teacher