First thing, you fed me. You cannot unfeed me. I am your vassal as long as you live, which I don't think you've acknowledged as a factor regarding the trust involved in even learning to de-age you. Then you took my name, and then you gave me your name. But I'm still your vassal, I was even before you changed your name, I will be until you die. Food from a vassal is safe. You could gorge yourself on berries from my tree until you made yourself sick and nothing would change.
no subject