I suggest putting the instruments in a room and using Authorized Personnel Only to autonomous-lock them so that they cannot be accessed autonomously.
Yeah well, I sort of have the grand piano in the living room. It looks rather nice there, so I would like to keep it that way. I'll pop over to Monique's, thanks Joe. I didn't know she had a mod like that.
BTW, I have the same issues as the person who asked originally about this. Strangely enough, the piano (the upright) doesn't seem as inviting to the simmies as the grand piano.
Dizzy, that's an interesting side-effect. If it is constant, that might be great for looking and laughing. Or movie making, which I don't do.