Then too: you actually *have* 220V coming in..
From the pole (or underground) transformer, with a ground center-tap for 2 X 110 circuits within the house
A zealot could obtain (for most things) 220V rated appliances, even bulbs (just change the sockets and use Euro lamps). You could 'save' some copper too! - at negligible expense of frying self with bathroom heaters + wet bodies - in a trice instead of longer, slower.
Kids + paperclips (or equiv) already manage to off selves with 110 - I shudder when in UK.. at equivalent risk made much larger.
A.
PS - last I heard, the best guess for lethal current *directly across* the heart: is quite less than one milliamp - no one wants to volunteer to see if it's really as low as ~ 100 microamps, for certain hearts and susceptible ones. (With all the parallel paths - this is not the same as "arm to arm" volts VS resistance / impedance, of course - that frequent connection point may be where the 'few milliamps' figure comes from.)
