What happens when normal people talk trash about "Twilight" stars on Twitter? Nothing. But if you're an actor like D.B. Sweeney, it's a bad idea. Sweeney recently tweeted a couple negative comments about Robert Pattinson's appearance on "The Daily Show." After that, Twihards unleashed a Twitter hurricane of hate on D.B., calling him a "sick low life" and insulting his acting credits. Luckily for him, Twihards don't usually punch more than their keyboards.