Yeah, yeah, police work was hard and grueling and whatever. But you wanted to make a difference. You wanted bad people to look at you and feel fear because they knew they were caught! Your mentor, however, lacked your same drive. Not your drive for work, though - in fact, he had enough of that for the whole office. He just didn't really, y'know, have fun. He was boring and tired and just wanted to get his work done. Almost constantly, he seemed annoyed with your optimism.
"Sit down, kid," He grumbled under his breath before speaking up again, his tone low and his voice tired and slightly annoyed. "You're too energetic. We're just doing paperwork. Calm down, this job ain't all it seems to be." Even now, at work, he took a drag of the cigar he held between his teeth.