"Without ear protection-have you ever fired a .22 inside a room?"
In fact, I have.
You are really reaching here. I suggest you arm yourself with a crossbow. It's pretty quiet.
I had my hearing damaged in RVN during my 1st tour. It would be nice if we could use silencers here, without all the hassles from the BATF, IMO.
In countries such as Norway, silencers are available over the counter - no registration or anything. The use of a silencer is seen as an act of good neighbourliness.