Given the task definition and input, reply with output. In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.

Sentence1: Bill saved all his pocket change for 2 weeks last month. Sentence2: It was for a sucker from the store. Sentence3: He brought all his chance and bought the sucker. Sentence4: Walking home he tripped and fell.
Bill was sad to see the sucker covered with dirt on the ground.