[HokiePaul]

How about this ...Player A loses a headband going up the court. Player B picks up the headband and 1) in a friendly manner, puts the headband back on the head of Player A or 2) Puts the headband on the head of player A over his/her eyes in an unsporting manner.

I have nothing in #1
I have an unsporting technical in #2. It's not the intentional contact that I am calling, it is the unsporting act. If someone wants to argue that it is a live ball so it has to be intentional, I can see that, but I just disagree in this case (and the case of the shoe untying). In my opinion unsporting act of untying an opponents shoe causes the ball to become dead (not the officials whistle), much like it would if a player curses on the court.