I'm not making fun of those guys, they do a great job!. I assumed he works in an office of some sort and in my office we are all pretty close and we all make fun of each other for different shit. I felt like a guy in office casual jingle jangling keys around all day would be hilarious, like an episode of Seinfeld.
Sorry, I took that as a negative jib at people who do that kind of work... or that your office actually sits around and demeans people who do that kind of work.