Usually, Joe Scarborough is the one who accidentally lapses into profanity on "Morning Joe." But on Friday, Mika Brzezinski was the one who swore.While reading some copy off the teleprompter, Brzezinski accidentally mispronounced the word "dip." Though there's a sound over part of the word, but it's clear from everyone's reaction that something out of the ordinary happened.WATCH:Read More... More on Morning Joe