What do You Have to Eat to Go from Geeky Jon Hamm to Mr. Don Draper

 I

If you know what one has to do to go from Jon Hamm to Mr. Don Draper please let me know.

One year book shot of the 42-year-old actor shows him wearing a baseball cap over a floppy fringe, pulling a goofy face in the middle of two classmates. 

Another photograph features him larking around with a second group of school friends sporting baggy jeans, a puffy jacket and unlaced trainers - Don Draper would perish the thought.