The Mighty Thor #201 comic book from Marvel Comics Group
If it wasn't for the fact that this comic came out decades ago, I would swear that Pluto was pissed off for being demoted from a planet to a dwarf planet.  That would make anyone fighting mad.  I think it would be better if he took it out on the astronomers instead of Thor, but that would be a boring comic book.

This is a scan of an old comic book. This item is not for sale. But you can find it on ebay.
Click below to go to ebay and search!