Bruce was Nate's goldfish.
Nate got him on December 13, 2000 to try to prove to his father that he had the responsibility to take care of a dog. However, he dropped the bowl, shattering it. Bruce survived, and was put into another bowl. Nate’s dad was probably not happy that Nate did this. Nate left the bowl next to an open window and the next day, Nate decided to show Bruce to Francis. By then, the water had frozen, and so had Bruce. Nate regretted getting a fish and said that he knew he should have gone with an ant farm.