I had a hard time choosing between “Observe” & “Obstacle”…. Both are very suitable words when it comes to discussing Firefighter, Paramedic (and, yes, police & military) safety.
Be sure you are always observing (I know, I’m beginning to sound like a broken record) what is going on around you. Observe any Obstacles – Obstacles that might keep you from doing your job safely or from making a quick egress (should it become necessary)
Obstacles can be all sorts. Debris in your pathway as you transgress through a building, A hysterical person getting in the way of you providing aid, A “first choice” egress that has become blocked or un-usable. Be aware of existing Obstacles and of anything that could potentially become an obstacle to the safety of yourself and your crew.
Remember Observe and know your Obstacles AND StaySAFE!!