Mice make great heroes. Probably because they're about as tiny as it gets, so it's inspiring to see them do great things.
I'm not sure how I put mice and my love of RPG's together; but I did. Baldur's Gate, Neverwinter Nights, Elder Scrolls, Dragon Age, Demon's Souls... you name it. Rolling up a new character is always a special moment full of new possibilities and closing doors.
Which class would you pick? I know what I'd do.
(Hint: I usually pick Rogue)
Also, see it bigger.