If a shop tip is how to do something better, then this is an anti-shop tip. In other words don't do this! I was in the forge the other night and reached around for the slack tub ladle and with out looking dipped it in the open barrell of quenching oil! I came very close to damping the banked coal with hydraulic oil! that would have been a miserable smokey mess if not an explosion.So, I guess the real tip is COVER UP THE OIL, as I now do.