Trevor, you are NOT the only one!! :)
My electro is in the garage. I had a new main run out to the garage, with all new breaker box, and dedicated line for the electro.
I do leave mine running 'unattended', meaning I am present in the area, but may be in the house, or else where on the property. I monitor my electro every 30 minutes or so. I do not leave it running overnight.
If a piece is not 'done', I shut it down and ... important here....
REMOVE THE PIECE and set aside. Never leave a piece hanging in the electrolyte without the power flowing.... :)