Quality Control!
It's a funny story, but perhaps a more long, over-complicated story would've fit better. It was a little humourous with the metal music behind, but because it was plagued with brevity, it really didn't make the cut the quality deserves. Other then that, the switching from scene to scene didn't seem to mix very well. Perhaps if you touched it up, made it longer and fleshed out the story a bit more, it would be a fun watch.