I know nobody here would heat one without checking BUT, some years ago a local 'smith sent a load through his shop wall doing just that. Apparently never checked to see if it was even loaded before he headed for the torch. He's long gone now. It wasn't a story he liked to have get around. Don't be that guy...
When I was in gunsmithing school in Denver several decades ago, there was this nice hole in the overhead of my bench...... IIRC, that too was a heated ML, not checked for load by a predecessor
