I used to tell people that too as I escaped for an extended lunch to burn off the mornings frustrations.

It is very nice, even though they could really do with putting a new bench and a couple of free weights in there - I might ask.

Honestly, I've never liked running outside unless it's after a ball. I like perfect conditions - no puddles and flat ground :)

You can download the routine or watch it online from dubious sources, and it works!