As an Electrical/Electronics Engineer, I am telling you that lifting the ground and you become a better ground than the house ground and electricity will take the easiest path to ground and that becomes you.
Say what? Please explain how the human body can be a ground for an AC grounded power system......
Also, the load in your home should be balanced on each phase. Having all of your high power equipment on one phase will overload the wiring, cause it to heat up (IxIxR) losses and cause the insulation to fail causing a major electrical fire.We are talking about audio equipment here.... In most cases all the combined connected loads would only add up to around 8 to 10 continuous FLA at best... Most hair dyers pull more than that.