"... how much more bracing it is to have sweetness laced with tartness. I told them I would be very, very nice until they asked me to stop, certain that they’d get sick of saccharine and syrupy in short order. Except they didn’t. They liked it."
Says Maureen Dowd, about her 10-year-old self.
People may be bored by all niceness all the time, but they still appreciate (and maybe take advantage of) those who opt to perform perfect sweetness. One can always find amusing edge in somebody else, even keeping the very nice person around for company and for snuggles later.