Dumping the exhaust behind the rear axle?

first of all , you can dump the exhaust out before the axle without shooting the heat directly at the axle and without dumping it on the ground and spraying dirt everywhere. there ARE more than 2 angles that can direct the pressure. second, if you have good door , trunk seals and any random holes sealed up , you are not going to get the fumes 90% of the time. third, if you get good mufflers, its not even going to be THAT loud. I have ran a ton of cars this way and I have never had an issue, and im not a fan of loud obnoxious sounding cars unless im at a track.