What am I thinking????

So my friend wants to do a sprint triathlon, also called a "mini" triathlon. Well she really wants me to do it and she caught me in a delirious moment and now I am committed to this ordeal. It consists of 1/2 mile swim, 12 mile bike ride, and 3 mile run. I thought Treven would talk me out of it but he thinks it's the best idea. So next payday I'm going to register and I'll keep some tabs on this to keep me accounted for.