Let's see, before the age of 13 I had (in some ascending order) gone hunting by myself with shotguns, made pipe bombs (and blown them up), built a working mortar, built model hot air ballons painted florescent green and flow them over lakes and homes (terrorizing the old folks), canoed down the 40 mile length of our local river to the Gulf of Mexico, and... hotwired my brother-in-law's car and drove to the State Line Bar where I bought beer and cigarettes at the package window.
At 14, I left most of that behind to pursue girls...