Two years ago, I would not have included that comma. I would probably use an ellipsis, because that was the only piece of punctuation I completely understood. Now, I annoy my friends by writing them huge paragraphs with punctuation they don't know and archaic words they despise, torment my English teacher into adding length limits on his assignments, and lurk on YouTube--with the official title of king of the grammar police, bestowed upon me by a terrified civilian who just wanted to watch his Minecraft video. Not that any of that stuff has to do with my writing: I enjoy fantasy worlds with excessive realism and phycological horror elements. You should check out my stuff when I write it :P