My first home yrs ago was a "mill house"
(all the houses on the street were built at the turn of the century
some with porches and other stuff but all basically the same)
Iron water pipe,knob and tube ,cellar floor was dirt.
I used to shoot 22's down there until, as I mentioned,
I got a headache or felt ill,no ear protection.
One day I waited for the family to leave for some reason,
set the stump up for shooting-put ear muffs on this time -and had at it
with a 30-30.
All the pipes rattled, a dust storm came down from the
joists and I waited for leaks.None but never did
that again-Like a mini earthquake.