Justified.

Ya wanna know what the most satisfying part of running 8 miles in 90 degree heat and burning over 1000 calories is?

Sense of accomplishment?  No.  Getting fit?  Nope.  Knowing I am one step closer to completing another training cycle?  Nah.  Totally guilt-free consumption of a scoop of Mocha Cappuccino Almond Fudge custard?  Hells yes.