[gundog]

It was done in deconstruction. We were told to demo a room. This was in the military. Given free reign like that, a couple of guys started hurling hammers through walls. Pretty soon, all the hammers are being thrown until there isn’t enough drywall to make it fun. An Estwing hit a stud and took a gentle curve to one side. It was actually a bit of an ergonomic improvement.

[TigersEye]

That must have been one heck of a throw to do that. In most cases I'd expect the handle to break before it bent.

It was actually a bit of an ergonomic improvement.

I can see how that would work. The one complaint I've heard is that an all steel hammer is more likely to cause carpenter's elbow than wooden handled hammers but I never got it.