It's good to want to keep a co-worker safe.
Beth works in a laboratory.
Beth has to clean up the lab.
Beth sweeps up broken glass and mops after and lets her coworker to walk carefully on the wet floor.
Beth cleans up quickly by brushing broken glassware into a corner and not mopping up all of a spill to leave work sooner.
Beth's coworker appreciates the warning and cleans up herself after using the lab.
Beth's coworker slips on the spill she can't see and cuts herself on the glass.