Okay so help me here. Why is the "Rule of Threes" sacred and how does knowing that I need air to breath within 3 minutes or I will die help me? I truly am lost on the concept. I use ACRONYMS and neat little mental tools but this whole deal is lost on me. As a 20 year Scout Master, current Merit Badge counselor, EMT Instructor, NFPA Instructor, FF1 and 2 Instructor/trainer I have never seen this used nor do I see any "field application". So enlighten me. Is this a military concept?
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