 He hates wallabies and acts hostile towards Rocko, but because of his incredibly poor eyesight he mistakenly believes that Rocko is a beaver, However, he fails to realize Rocko is a wallaby when he is briefly turned young while in the Bermuda Triangle and even risks his life to save Rocko (who had become old) from drowning.He was also in love with Winifred Wolfe when he attended Ozark Tech, although she rejected him because of his self-centered attitude, however she is later impressed when Hiram risks his life while trying to save Rocko while their cruise ship is in the Bermuda Triangle and even comes to Hiram's rescue.In "Static Cling", as 20 years have passed, Grandpa Wolfe has since died and his ghost is floating around O-Town, although, since he is senile, he is oblivious to this fact.