I hear it every year, celebratory gunfire especially on New Years Eve. I don't think they are necessarily celebrating anything, just looking for an excuse to fire a gun. It is especially dangerous with shots fired into the air, not only could the bullet come down and injure or kill someone, but the damage to property like putting a hole in someone's roof. Even if you fire at the ground you could hit a buried underground electric cable.. There are severe legal penalties where I live if your are caught. So, I say don't do it.