You are incorrect that this is California. From one message at the link: "Thanks for the advice, but I don't work in California." California law is pretty clea

You are incorrect that this is California. From one message at the link: "Thanks for the advice, but I don't work in California." California law is pretty clear, if you do it on your own time, on your own equipment, it's yours. Most other states have a "unless related to something your employer does, or maybe might do, or they feel like" clause, but California does not allow that.