Some of the best parts of comedy, stand up or television sitcoms, are completely accidental. Which is probably why most DVDs and Blu-rays have these awesome blooper reels and outtakes. One of my favorite examples of this is Jeff Dunham's Arguing With Myself video. With him, you would think it would be harder doing stand-up, with puppets, while doing his ventriloquism, to recover from a slip-up. But no... his keen comedic mind kept right on going with some obviously ad-lib lines that are to me as good (if not better) then some parts of his show. As they say, some of the greats are just born with it.