Title: Gloria's Cake. Sentence 1: Shirley's friend Gloria always bragged about what a baker she was. Sentence 2: Shirley trusted her friend, and asked Gloria to cater a birthday. Sentence 3: Gloria arrived late and unprepared, but Shirley was still confident. Sentence 4: When Gloria brought out a horrible, dry cake, she changed her mind.
Shirley decided she would never trust a braggart again.