Odd Office Bathroom Behavior

I work in an office with over 1000 people working in it.  With so many people, there's a continuous flow of people in and out of each bathroom.  One cannot help but notice some odd behavior, so I have decided to detail a couple.

-Camping out.  On multiple occasions, I have seen grown men wait to use a specific urinal when there were 2 open urinals available for use.  I cannot for the life of me think of a reason when I would have to use a specific urinal.  

-TP Blinds.  People in the stalls will hang toilet paper to block the 1/4" space between the door and the wall.  Do they think that someone will want to look in on them?  

-Talking on the phone.  Full conversation no matter what other activities are going on.  If I even heard a flush while talking to someone that would end the conversation.  

-Wetting hands.  Its only called washing hands if you use soap.  Otherwise, you are just getting your hands wet.  

I doubt these behaviors are unique to my workplace, but none of them are acceptable.