Detective (侦探) Dino is on holiday. He travels to another city and goes into a hotel. The keeper gives him a one-bed room. All the rooms on his floor are one-bed ones. The keeper says to him, "One room is for one person only. Don't bring anyone else to your room. Your room is on the third floor." Dino takes the room and goes to the third floor.
A young lady lives next door to Dino. When Dino goes by the lady's room, the lady is telephoning the keeper. She says that her wallet in the room is missing. She's just back from the cinema.
In the evening, someone knocks on Dino's door. He opens the door. A young man stands in front of him.
"Oh! Eh…Isn't it Room 408?" the young man asks.
"No, it is Room 308." Dino answers.
"I'm sorry. "Dino closes the door and calls the police. The police come and catch the man in another one-bed room. He is thethief.
