people taking picture of you.

[Theo]

Now if I could just get him to stop standing so close to me (and other people) when he is talking to me or them!!!

If someone tries to do that, I usually twist my hips, essentially standing sideways but with my upper body turned toward them, and put one leg forward quite a bit. Either they step on my foot, or they stay at the minimum distance that it prescribes.

[Kiwi4Ever]

I was at work to day and this guy who has been checking me out for sometime was working and I caught him taking my picture with his cellphone.

Surely, this is a legal issue?  With legal ramifications...If someone takes your image in a public setting then I don't think there is much you can do about it because your in public.  However if they publish that image in away that is detrimental or derogatory they may be in trouble.  If this is happening in a work situation I'm sure you have the right to complain.  It could lead to stalking...