Rules are made to be broken...

If you spend a lot of time learning grammar rules, you may be doing yourself a disservice, as many grammar rules are now okay to break! The rules we learned in school all those years ago? Evolution has rendered them useless. English is a language whose speakers adapt and manipulate to fit the speaker, and not the other way around. In general, Anglophones don't derive their identity from their language as many other cultures- such as the French. Instead, English is nothing more than a tool to be used by its speakers; it's not a part of our cultural heritage. I found the following article on the subject of English rules to be very interesting (and funny):
http://www.chicagotribune.com/features/life/ct-tribu-words-work-rulebreakers-20120919,0,4074825.story

Enjoy!