Here's a question for you that many of my female friends will relate to:
Why is it that when women go to the bathroom, we don't want to sit on a toilet that was just occupied?
When I use the bathroom at work, if I see a co-worker leaving the bathroom and I happen to pick the stall that she just vacated (which you can tell by the still swishing water), I'll make a point of going to a different stall. Why is that? What's the difference if someone's butt was on the toilet two seconds ago or two hours ago? Do we think that the germs die in the two hours between when someone last used it and we sit on it?
I got into a discussion with some women at work about our work bathroom habits which was rather amusing (at least to us it was). It came to light that some of us go to a different floor if we have to "make stinkies," while others wait until they get home and try not to go at all while at work.
In the meantime, a couple of guys in our office can be seen on their way to the bathroom, sports section in hand, ready for a nice long sit.
The difference between men and women when it comes to bathroom habits is rather amusing.