I got a little stupid with the sawzall yesterday.
Was on the wrong side when I was cutting it. My "goal" was to cut it below the hub, sweat off the brass and reconnect with a mission no hub coupling.
Knowing what happened, and knowing that
1. Can't touch those joists...
I'm sure this thread will go the distance in discussion.
As a plumber and drain cleaner, I find myself taking issue with building any piping system that I know I've encountered over time that proved to be horrible from the standpoint of cleaning the drain.