At one time,
based on a suggestion from @NiLuJe and to disable the notorious factory "Reset" option I enabled Parental Controls.
I couldn't figure out how to Disable them. As such I had to manage this device from my Amazon account when deregistering it and reregistering it to my wife. The Parental Controls survived! I can't do a factory reset to turn them off since that is disabled with Parental Controls (nor would I want to as it would remove all my jailbreak).
It's easy to see how to enable Parental Controls (set a password) but how do you disable them? You can change the password to (like 111222777) to do a factory reset but I would rather not have to re-jailbreak. Isn't there a password you can enter (or a setting somewhere) to Disable Parental Controls?