Still got one myself.
Back in the 70`s,during an exceptionally cold winter,I kept my "Weider Power Twister" in the closet of my bedroom up against the outside wall of the closet........it was cold in hat big old house upstairs.
Anyfuckingway,I broke that bad boy out for a quick chest/biceps pump and on the 3rd. rep,because the spring/metal was so cold,that fucker snapped right in half almost removing my lantern-like jaw from my ever lovin` handsome face.........missed my jaw by a kunthair!