I always carry my grenades to weddings, but I have never had one fall out of the cumberbun of my Tux when I was dancing. They were unlucky, I guess.
Note that it belongs to the “Oddly Enough” category, which Reuters uses for stories that have a human-interest slant, often one relating to the folly of the human race. Yes, it’s a tragic story. It also shows how stupid people can be.
Sounds like candidates for the next Darwin Award.
I don’t carry grenades to formal affairs because they ruin the drape of my dinner jacket. However, my jacket is tailored to hide the bulge made by my Glock 19.