The Mandalorian Armor 15

That was the main reason that Boba Fett had programmed the air filters in his helmet to catch and expunge those intoxicating molecules; more than that, he had paid hefty amounts to the galaxy's finest black-market microsurgeons to have the corresponding receptor sites stripped away from the branching ends of his own nervous system. Whatever stimulation to the pleasure centers of his brain that might have been lost thereby was more than compensated for by the control he retained in situations like this; in his business, he couldn't afford the simpleminded hysteria to which the Shell Hutts were already succumbing.-Chpt.16 pg.190