I prefer the literal sense anyway.
That’s a lot of bull! Stay away from my dreadmill Stan!
I think you sprung a spring!
That machine’s new sign reads:" Don’t tread on me…because you can’t"
He was just doing his crunches…
They forgot to tell him it was a tread(lightly)mill.
As usual, I agree with Karl.
If this was “Sesame Street”, I’d portray Stan as Bert (and a little of Herry Monster).