Years ago, I was visiting my buddy who is a Gunsmith. He showed me a metal walking stick, and said "watch this"
He shot/demolished a block of wood at the end of workshop.
It was a 38 Caliber air gun. Wouldn't have noticed in a million years. Even had a set of notched sights.
Apparently, they were very popular in England back in the days of the Yorkshire Ripper era.
I certainly would not have liked being at the receiving end.
It was not a toy.