Then he's an idiot and you'd do well to steer clear of any fish he owns.
Unless you can trade the for this cat fish:
http://www.funnypetpictures.com/petpics/2002-2004/252.jpg
Unless you can trade the for this cat fish:
http://www.funnypetpictures.com/petpics/2002-2004/252.jpg