Situation: Crouching and looking for a screwdriver inside my backpack so I can do some inspecting to the fire extinguisher in front of me.
Alternative situations: I walked ahead of me to grab the fire extinguisher and to my left was the door. Just closed a door behind me and looking for airpads in my backpack now, noticing the fire extinguisher in front of me. I can hear the elevator moving in my 8 o'clock direction.
Question: Can the amount of trash can behind me be divided by three?