"So how was your swim?" Mark asked me as we escorted the kids through the darkening parking lot at the Y.
"Excellent. I felt really fast and powerful today. Just cruising through the water. Then at the end one of my legs started to hurt, in the back, so I cut it a little short. But really I was just cutting out my cool-down, so I got the whole main part of the workout in."
I added as I got in the car, "Though I'm pretty worn out. I was feeling so good, I pushed myself pretty hard." Then I laughed.
"What's so funny?"
"Basically, I went, 'This feels fun, nice and easy. I need to work harder so it doesn't feel good anymore.'"
"Hey! Now you're getting the idea."
"Huh. I guess I am."