There's a skin cream for that. These guys have tabla rasa mostly.
Back in the days of negotiating the "Agreement of the Willing," that kind of behavior was condemned as aggressive amnesia. Anyway, I didn't remember him, so like a good evolutionist, I politely provided some links. Am I casting my bread upon the waters, or pearls before swine?
By the way, you mean tabula rasa (blank slate, not rosy slate).