I would wait and handle each item as it comes up. You don't really have to worry about him and why/if he is doing stuff deliberately; the next time an alarm goes off, tell him you find that very distracting and would he please turn off the alarm during your sessions. That's not an unreasonable request!

I think with the sport shirt buttons, since he doesn't do it during session that he may just be a slob and sometimes not bother buttoning the shirt, there's usually only like 3-5 buttons on a sport shirt like that?

http://www.teerrifictees.com/content...rt%20Shirt.jpg

I think you said he asks about whether it's all right to make some of the phone calls? I would tell him "I would rather you did not; it breaks my concentration and makes me feel like this time I am paying for is not about me" and leave it at that?