To prove that "stupid is as stupid does", I just signed up for another footrace. Or since my wife talked me into it, perhaps a better saying is "man has will, but woman has her way." There's probably truth in both, but I still think the first is more appropriate. Of course, "After the Olympics, everything looks so damned easy."
In the last year I've signed up for three different 5k events. The first, I never even started because of a knee issue during training. Admittedly it was day late and a dollar short training, but still not an auspicious start. The second I finished in about 37 minutes. Slow but steady, and only a couple of walk breaks. After the second event I stopped running. Then, the 3rd event was sprung on me with only a day or two notice. I ran an out and back for that one. I ran about 90% of the out and probably 60% of the back. So the glass half full person would say, "Well look, you're improving!" And maybe so. But the glass half empty sort would say that it doesn't seem to make a lot of sense signing up for a 7k (that's 29% more!) when it's been a struggle to finish a 5k.
So why did I sign up? Beats me. But the fact that there's a free beer at Kieran's at the end didn't hurt. Because when you come down to it, I'm not a glass half empty or glass half full kind of guy. I'm a glass full of beer kind of guy.