Seven. seven of them bad.

Anger: ang'ger n. manifested in the individual who spurns love and opts instead for fury;
a desire to harm others. See SAM.

It angered him. The thing called him fat, how could he not be mad. He couldn't believe that that thing had once been a hobbit, a nice hobbit. Now it just pissed him off. It always called him names and gave him dirty looks. And yet, Frodo kept him close, made him their tour guide, and that only made Sam madder. The way it looks at him makes him want to grab it and strangle it, but Frodo stops him and the anger is trapped inside, wanting out.
And when she took Frodo and put him under her spell, killing him with her poison, it finally had a chance to get out. And when it had grabbed him, letting her have Frodo, the violence inside of him escaped and it would be the first to experience it. He attacked it back once it had gotten a hold of him. With all his strength, and the anger building inside of him, he defeated the thing, having only the fury and desire to kill it.
With the fury still in him, he went after her, using Sting to stab her and save his friend, his master. The anger he used as a weapon as he swung at her with more force and fiercer then anyone had ever done. No enemy had ever gotten so far as to stab her like he did. He took it all out on her, all the anger it had caused him, all the anger the war had caused him, al and any anger that had built up inside f him was released on her. And when she was defeated, and Frodo was taken by orcs, he followed to seek even more revenge.

Four. Anger. Seven. Sin. Deadly.