Have you experienced a different set of norms from another culture either by traveling somewhere or by meeting a foreigner here in America? What was it like? Were there misunderstandings?
Something else that you might want to blog about is google another culture where you would like to travel. Find out what unique norms exist in their culture. Here is a link to cultural etiquette around the world.
It looks like this from the inside:
Would you be able to use a toilet if it looked like everyone could see you, even though you knew they could not? This is a taboo because even though people could not see us, the mere thought of them seeing us would make us hesitant. In other words, simply thinking about doing this is embarrassing and so we don't want to even think about it. Perhaps, that is why we have so many euphemisms for using the toilet: using the john, the restroom, the bathroom, the lavatory, the men's room, etc...
Moral holiday places
For more info see Ferris and Stein 79-80