The good kind as they say, though right?
It might spread other things but I wonder if it would do bad things like the bad bacteria, or simply continue to digest stuff, no matter where it goes, making plugging screw ups safe since thats what you want down there anyways and more help cant hurt, unless your own would identify and attack a visitor even of similar occupation, to hell with professional curtsey, still possibly neutralizing the threat anyways?
Worthy considerations, but perhaps beyond the scope of this post. I need that break now anyways, lets try that again...