Too Slow

Yesterday I set my heart rate monitor to beep at 80% of my maximum rate, as prescribed in RW. You know. Going for optimum aerobic exercise. Talk about a waste of time! Every time I got up to a pace I like to go at I hear the beeping and have to slow down. It took forever. Mind you, I was full of energy at the end and could have kept going but it was time to take out the garbage, scarf down the oatmeal and take the boy to school. So it was wasted time. Remind to run run like Zap the Locomotive. All out all the time. That's the ticket.
Punch me, Conductor. I'm leaving the station.