It is rude to be ungrateful of someone's kind gesture
Pauline's friend Kathy just gifted her some cookies she made and Pauline takes a bite.
Pauline wants to give her opinion on the cookies.
Pauline doesn't like the cookies, but she tells Kathy they taste great and thanks her.
Pauline tells Kathy that they taste terrible and spits out the bite she took.
Kathy feels good about herself and continues to improve at baking.
Kathy's feelings are hurt and now she thinks she's a terrible baker.