I need help in editing and proof reading my story called An Unexpected Guest

Summary:
Frank being an ordinary man with being a fan of MLP:fim. He has no girlfriend, a decent job working a the school he is attending and is by far the nicest guy you'll see around these parts of town he lives in. While he was on a computer he hears a sound coming from his closest. Think of none of it, he opens the door to find a very unexpected guest.

Here is a link to Google Docs: An Unexpected Guest

I'll help if I'm able!

Frank was an ordinary man, but was also a fan of My Little Pony. He has no girlfriend, but he's got a fairly decent job working at his old school. Anyone you ask would tell you that he's the friendliest in the neighborhood. One evening he was working at his computer when he heard a sound that seemed to come from his closet. As a cat owner, he didn't think much of it, but when he opened the door...

he found a very unexpected guest.

And I haven't even read the story yet! ;D