What story did the detective thief tell?

One day, Mr. Ma, a farmer, ran to the German shepherd detective Poirot in a panic to report the case. Mr. Ma said, "My farm is short of food again and has lost a lot of food. According to Mr. Mouse, the biggest suspect is Mr. Niu, because this guy hides and eats alone whenever he has time. "

Therefore, detectives Poirot and Bobby went deep into the farm and observed the people employed by Mr. Ma for several days.

One day, Poirot asked Mr. Ma to call all the employees to the office. Poirot asked, "The farms were stolen one by one. Tell us, who is the most suspicious? "

Mr. Mouse can't wait to say, "Old cow! As soon as it is free, it keeps chewing and eating. There is less food. Who did he steal? "

Detective Poirot smiled and said, "Mr. Rat, don't plant and frame people!" " You stole food, Mr. scalper is innocent! "

Hearing this, Mr. Mouse collapsed with fear. Sure enough, a lot of food was found in his residence.

Mr. Ma asked doubtfully, "Detective, how did you find out?"

Poirot replied seriously: "Just because a cow keeps eating and chewing doesn't mean it has stolen anything, because its stomach is different from others. It put the chewed grass back into its mouth and chewed it up, then ate it. The mouse always wants to find a scapegoat, which actually shows that it has a guilty conscience. Therefore, cattle are not thieves. "