Office Bathroom Etiquette

I'm throwing the question out here for all you office workers and those who are married to office workers. I have never considered myself the "typical guy", so often if what I consider a social norm may be way off. One dilemma I keep finding myself coming back to is the awkwardness of knowing the people you might be sitting next to in the stall. First off, I find nothing too awkward about the urinal, every guy knows that if there is no divider you skip one urinal and a casual head nod or light conversation is appropriate, but what about the stall?

I will first confess that after I eat Chipotle or any Mexican food...or any food as I'm getting older, I need to find a restroom fairly quickly and I would rather not know anyone when I get there...nor would you want to be there. In my office I usually use the handicap stall, it's the largest, farthest away and you can't see my feet. When I go into the bathroom and the scent of a rotten garden patch assaults my nostrils and I can see the guy's shoes in the stall, hear the struggle he may be going through and recognize who it is, I can't look at them the same. I now know you as rotten-garbage-patch-pooer. When it's someone your senior it makes it even worse, especially if they walk out and you're washing your hands; you have to act overly casual...and not breathe in at the same time. I will sometimes use the bathroom on a different floor where people either don't know me well or if they did get a glimpse of my feet, wouldn't typically recognize them.

Here are my questions:

1.) am I the only person that thinks like this and/or cares?

2.) Do you try to avoid P2 (Public Pooing)?

3.)If someone is already in a stall will you sit in a stall next to them? This really bothers me, I want to relax in there, not be rushed, nor hear your bowels.

I will confess I use my Blackberry while in the stall, pick up a paper and read it if it's on the floor. I really enjoy my bathroom time and prefer to do it alone. Please respond and ask your husbands if this is not your area of expertise because I know the female bathroom rules are different, plus I only imagine couches, Make-up counters and hair stuff in there. I block out any other images...