If you were a Deer in the Blue Ridge Mountains and were thinking about crossing the road, my Harley would be heard 10 times better than my Spyder from 1/4 mile away, front or rear. Trees, Mountains, Boulders, all effect sound , depending on echos, Deflection, absorption, etc,. Your Science example is not any more convincing than if we were in an elevator together with 10 other people and I farted out loud, not a slider ,and that only those behind me would try to blame me as I kept pointing at you! �� When you fire a Shot Gun, is the sound louder at the Butt, or the front discharge of the Barrel as the Bullet exits ? If you were a Deer standing 1/4 away, would you care ? The Deer would run from the loudest noise, front or rear of the shot. My Harley would be a 12 Gauge Shot Gun while my Spyder would be a 22 Short.
In my opinion, this sort of dangerous nonsense doesn't belong here. Even if it is said in jest. nojoke