I can only hope that if any did go off that they weren't in grandpa's 1903 that is now leaning in the corner of a closet somewhere uncleaned.

My Brother and his buddies did that to my mint 1937 K98icon all matching when I went off into the Army. Took it out and blew about 25 corrosive rounds through it. Threw it in the closet uncleaned. I came home on leave like 2 years later you can only envision what the bore looked like. I don't trust him with any of my firearms to this day and that was close to 40 years ago.