"I, I....kissed the teacher?"
Also, that scene in Lisa's Substitute is just perfect:
Lisa: You're the best teacher I'll ever have--
Bergstrom: Oh, that's not true, others will come.
Lisa: Oh please!
Bergstrom: You're right, I am the best. But they need me over in Capital City.
Lisa: But I need you too.
Bergstrom: When you're middle-class, anybody who cares will leave to help someone needier.
Lisa: ...I understand.