First time I did KickMax, right before the dreaded Plie Squat jumps - I uttered an expletive - not sure what, but it was not very nice. I looked around for the hidden cameras when Cathe leaned towards me, cocked her head and said with that pleasant little smile of hers, "What was that?"
Oh yeah, I curse, complain, moan, whine... My DD14 will occasionally say, "Mom, stop swearing at Cathe, it isn't nice."