That's what some of the cats looked like at the National Aquarium in Baltimore - like they were overfed to make them unnaturally large. They looked like they had a little trouble swimming - did you notice that, Melody? This goes to show you that it can happen naturally, too.
I saw a red-tailed cat at the LFS
today, and I just had to walk away, and try not to fret over what will become of that poor thing.