Phrases that should be memorized

Everyone knows there are certain phrases one should memorize.  Like...donde esta el bano?  or where is the bathroom?  However there are other phrases, weirder phrases, that also have to be memorized.  Today, I bring you two.  If you want more, I'll further to post on Tuesday.

So there's this movie called "I was a male war bride".  Cary Grant and Ann Sheridan star in this 1949 comedy.  In it, Cary Grant is a French officer that marries an American officer.  The U.S. has this law that spouses of Americans that were foreigners could come back with their spouses under protection of the U.S.  However, Cary Grant is not a wife, which is the point.  He has to learn to say the following phrase:

"I am an alien spouse of female military personnel en route to the United States under public law 271 of the Congress."

This got him everywhere he needed to be, admist skeptical looks, a lot of misunderstanding, and some really uncomfortable situations.

In real life, another person memorized another phrase.  This past week the transcripts of the Rosenberg trials were realeased.  The Rosenberg grand juries were monumental cases for various reasons.  The Rosenbergs are the only Americans ever executed for treason - namely for selling secrets to the Russians.  The transcripts are interesting to say the least, and were very secret until now.  It's quite a big deal!

Ethel Rosenberg (the wife) got questioned twice.  She memorized the phrase "I decline to answer on the grounds that this might tend to incriminate me."  And she used it...a LOT.  When I say a lot, I mean, A LOT.  Practically every question asked, the answer was "I decline to answer on the ground that it might tend to incriminate me."  

I wonder what other helpful phrases may become useful in the future.  For tourists to the U.S., especially college kids studying abroad here, the answers might just be "that's what she said" and "your mom".