This Sunday, I'm doing 7 hours of (voluntary! I'm not a felon!) community service, helping out at the Downtown San José Rock & Roll Half Marathon. I'm handing out water and protein drinks to runners as they pass by at around the 9.5 mile mark. A few of my friends are doing the run [I can't run well because I took a ski pole to the knee two years ago (no, I'm serious. Screw skyrim for making people think I'm lying)] but I'm participating with them by giving free drinks while Rock & Roll plays nearby. Have any of you done marathons before? It doesn't have to be an actual marathon, it could be a half marathon like this one or a 5 to 10 Kilo run.