This is exactly why I'm still debating on whether or not to run a 5k in the spring. I'm a newbie when it comes to running, so I actually want to work hard, train properly, and get my time under 30 minutes (and hopefully even lower). But most 5ks seem to be overrun with fats who waddle the entire course, snarf down all the food at the end, and get a participation medal. It's really turning me off the idea of signing up for one.