Yup... if I had forced myself to eat an extra 200 calories at breakfast, I wouldn't have ruined my whole day out on the Frisco Highline... and although I probably wouldn't have gone through the trouble of counting out exactly how many calories I would need, success would have required me to *not* just listen to my body. I'm still actually quite perturbed about that day... I've never bonked before where I couldn't get back out ahead of it, but no matter what I did that day I was just TOAST.