Teacher:In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.
Teacher: Now, understand the problem? Solve this instance: Title: Prankster. Sentence 1: Sam put a length of saran wrap on the toilet as a joke. Sentence 2: He waited until his brother went to use the bathroom. Sentence 3: There wa a silence and then a shout. Sentence 4: Sam's brother burst the door open and ran after Sam.
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Sam escaped because he was faster than his brother.