Fonz is a quiet man, which is great because he works in sound. Maybe he's been listening for so long that he's actually forgotten how to speak. Or maybe he's shy, who knows. Point is, he's excellent at what he does and can be relied on for his skills and experience in both production and post production sound.
Watch Fonz as he quietly preps his equipment. Watch as he quietly mics the talent. Watch as he quietly eats lunch. You may forget you even had a sound guy on set but when it comes time for post you'll be glad he was.