So yesterday, everyone found out about how Ryan Dunn got drunk, drove his car over 100 mph then crashed it into a burning wreck, killing himself and his friend. In light of the news, Roger Ebert tweeted about how friends shouldn't let friends drive drunk (which, we can all agree, is kind of common knowledge). Unfortunately, Bam Margera didn't take too kindly to the comment and proceeded to blast him on Twitter, truly the sanest ...