Two, and to parrot John McCarthy, they both had it coming.
One was a Cobra gap wedge that would snap fade the ball at the most inappropriate times. After a particularly nasty I said to my friend Bill that I was going to give the damn thing away, and he asked why would I give anyone such an obviously possessed club....so I snapped it instead and drowned the two halves in the same pond that held my ball.
The other was a one iron that a player violently threw without looking where it might go. It came right at me but was deflected by my stand bag, so I picked it up, snapped it across my knee, dropped the pieces on the ground, shouldered my bag and walked off.
p.s. I can't fault Stenson, he's an artist, and every now and then you need to break something, ala Pete Townshend, Jimi Hendrix, Eddie VanHalen, or even Bluto.