Five minutes later guess what he's doing. Again. At one point I was tempted to say something like "put that thing away or I swear to God I'll break it" but I decided to just drop it. Guess he doesn't value this job after all. *shrug* I tried, but you cannot save people from their own stupidity.
Also anecdotal evidence suggests that I have a calming effect on people, since I seem to get a lot less angry people, judging by me overhearing other people talking to them and how negative those interactions sound. I don't know if it's just luck, but that doesn't tend to happen. I noticed this at my last job too, maybe my tone of voice or something else just has a disarming effect, but whatever it is people seem to react less negatively to me. Maybe it's because I make an effort to sound pleasant and friendly, and I know people react to tone of voice and if the person you're talking to sounds bored and disinterested and you're already in a bad mood it doesn't help.