A Sudden Case of Exercise

The tall one signed up for a half marathon next spring and he's asked me to coach him through his training. We've gone out for runs a couple time at the local park and I think he's running way too fast. Last spring we did the St. Patrick's Day 5 mile run and I was happy with that time, but I've had way too many treats since then. Also, all I do is lay around all day because the tall and short one leave me locked in the house. We'll be training a lot in the coming months and the owner is looking into getting an HRM that actually works, but this one has GPS too.