Doesn't know you very well.
Just do what I do when he gets like this - just nod and say, "Yep...".
At post-run breakfast on Sunday he said, "Yeah, I know my dad. After that workout, he'll rest and won't run today or maybe tomorrow..."
You were just getting started. ;)
"I GOT BLISTERS ON MY FINGERS!"
When I get to the bottom I go back to the top of the slide
Where I stop and I turn and I go for a ride
Till I get to the bottom and I see you again.