"On Twitter someone will write, 'Your an idiot,' and I'll go, 'No, you're an idiot,' and all my Twitterphiles will go, 'Hey, Sam Jackson, he's the grammar police.' I'll take that. Somebody needs to be. I mean, we have newscasters who don't even know how to conjugate verbs, something Walter Cronkite and Edward R. Murrow never had problems with." Samuel L. Jackson hates bad grammar.