Something twigged this question from another thread.  Everyone knows at least half of the 10 commandments, with the exception of Rep. Lynn Westmoreland (R - Georgia):

http://watch.thecomedynetwork.ca/the-colbert-report/best-of/better-know-...

(advance to 4:15 after the ad)

Now, for reference, here (in a nutshell) are the list of 10 things you must do or not do, as delivered by Moses, from God:

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Exodus 20: 1-17, (VU p. 877)                                         
John 2: 13-22                                   
 Sabbath Time