A dragon for a steed? Surely you jest! Such creatures would never agree to carry humans around! ...Though, to get one to do so would certainly prove my worthiness as a knight... [Even when stuck in a fairy tale role, Goku still doesn't get sarcasm.]

I would travel around the world, righting whatever wrongs I encounter and honing my skills so that no man or beast could best me in combat! [...so, basically, what he normally does.]