Stop in for a cup of coffee

John @Sublime one yesterday I read an article where several P320 owners are suing SIG claiming their guns misfired on their own when holster.
Other than hitting the butt of a shotgun or the old M-16 on the ground really hard causing a misfire I'd never heard of a handgun misfiring.
What have you heard?? Over the years working I've holstered a weapon thousands of times and never had a problem.