Why I Hate Running by Brendan Leonard at Semi-Rad.com:
I hate running, three to four times a week if I have time. I hated it yesterday for a little over an hour.
Maybe the sickest thing about the whole idea of running is when you sign up for an organized run, like an ultramarathon, and in order to run 50 or 62 or 100 miles in one day, you basically have to spend about six months running all the time just so you can run that far in one day. You get to the finish line of a 50-mile race and people are like, “Congratulations, you just ran 50 miles.” And you’re like, “Fuck that, I just ran 750 miles—you just saw the last 50. Anyway, let’s go get a pizza.” And then you hate yourself and make strange noises every time you stand up from a seated position for about five days and then you start thinking, “That race was so fun, I should do that again soon.” Sometimes I like to say, “I’ve done dumber things for worse reasons.”
Most of the time I really enjoy running. But there are plenty of times I'm happy to go for a run just to justify stuffing my face with pizza. Or beer. Or steaks. Or burgers.