How Stupid can you get!?

Lol! okok... There was this day where I spent the whole day at business school, shaking people's hands, introducing myself and so on... and later in the evening when I just finished washing up and about to leave the bathroom...
My housemate came out of his room to use the bathroom We met at the entrance of the bathroom and we smiled at each other and said our "how do you do"'s .
As he raised up his hand to indicate he was going to cut behind me to get to the bathroom,
I STUPIDLY took out my hand and Shook his HANDS!!!!!!!!!
LOL!!!!
Which KInda IDiot In the world will Shake hands with someone passing through the the TOILET!
Lol!!!!
LOL!!!!!
He must have thought I was soMe CrazY NutCase who used to work in toilets and shaking people's hands as they entered!!! !lol!!!

"It must be an asian culture to shake hands before peeing....." lol!!!
okok.. I wonder who else has a better story!!!!