Chris L, PLEASE do yourself and your family a favor and get a GFCI outlet installed in the circuit that feeds power to your tank. You can also buy short extension cords with GFCI in them, but the outlet if installed properly will protect every other outlet in the circuit. Your wife would not have been shocked had a GFCI been in place. It could save your life. And I DO hope your wife is ok, as well as your tank life.