Nope.
So I gave it some thought. How could I prove it was not “soft metal”? Then it hit me. A simple, but elegant solution. What if I bent the fork back?! I don’t even think Uri Geller has done this one! :grin: So I did just that. I bent it back, always making sure I bent it so that no one could ever accuse me of allowing gravity to do any of the bending. Then, just to make sure, I went ahead and hung my thickest coffee mug off the fork. Any lead or pewter would have given way under its weight.
I’ll put your theory right there next to those who have said “hidden lasers” and “acid on my fingers”! :grin: