Time Travel Etiquette

I read an essay from one of my favorite essayists, Chuck Klosterman, tonight.  It was about the practical realities that make time travel impossible.  He mentions things like if you time traveled to say, the Victorian Age, and sneezed, then you stand a chance that you've just infected that entire population with a disease they have not built a resistance to.  He also talked about if you traveled and returned, it would be impossible to return to the same spot because the earth would have rotated while you were on your walkabout.

Since we just saw a Woody Allen movie that had a dusting of time travel as a theme, I'm putting Jen in Paris in the rain.  She probably should have changed out of her PJ's.  The French are not keen on this type of fashion faux pas.