When I was 2, I was pulling out my hair. My mother took me to the doctor who told her that I needed something to do with my hands. I was "rewarded" with a big bag of crafty toys which included sewing cards - and a short haircut.
(For the young-uns in the audience, sewing cards were cardboards pictures with holes punched, through which a colorful shoelace was pulled through. Do they still make them?)