nothing like toilet humour.
I used to know someone who wouldnt use the loo in anyone elses house other than their own. Poor person was seriously hampered in life till he got some help.
Also, I did a study on toilet behaviour and how people, if they go into a toilet with 3 cubicles, they'll 9 out of 10 times use the one on the right or the one on the left, never the one in the middle - then when the next person comes in, they'll take the other end. Most people wont use the middle for fear of being next to people.
There, that may have bored you to death.