re: How do you know it was unsolicited
I don't, but anyone touching you more than briefly is definately crossing your physical boundaries and is unwarranted. Thinking of when it has happened to me in the workplace, I still find it unnerving and unwarranted. I would say you have to be on a pretty friendly basis with the person FIRST, and then he should ASK.
Anything else is bizarre.
As for world leaders looking insane, I agee with you. All the hardliners are lining up, and even if you're a diplomat; you gotta get noxious just to keep up with the bunch currently in power worldwide.
