public school
Burns: We don't have to be adversaries Homer, we both want a fair union
                         contract...
                         Homer's Brain: Why is Mr. Burns being so nice to me?
                         Burns: ...and if you scratch my back, I'll scratch yours...
                         Homer's Brain: Wait a minute, is he coming onto me?
                         Burns: I mean, if I should slip something into your pocket, what's the harm?
                         Homer's Brain: Oh my God! He IS coming onto me!'
                         Burns: After all, negotiations make strange bed-fellows.
                         Homer's Brain: (Screams)
                         Homer: Sorry Mr. Burns, but I don't go in for these backdoor shenanigans. Sure
                         I'm flattered, maybe even a little curious, but the answer is no!