In early 1998, students in my statistics class estimated my height from this picture and the result was 68.85 with a margin of error 1.02 inches and a little visual bias.  I guess I have shrunk a little bit since high school.  You can probably estimate the length of the Walleye (left) and maybe also the length of the Rainbow Trout (right)  that I'd caught from Lake Erie in summer 1997.