Let us see if we have this right. 
A Ruby Tuesday bartender serves an oversized guy the equivalent of 19 beers in a three-hour period. The guy attacks another customer with absolutely no provocation. There is a Tennessee law against overserving customers.
And Ruby Tuesday thinks it has a defensible position? At least the jury didn't think so. 
Up above, the story with some rather shocking video from Newschannel 5.