What is the biggest loophole in the front desk of the hotel?

In this case, you can politely ask the guest: Mr. XX, the room attendant couldn't find XX when he was making rounds. Do you remember where you put it after you used it?

If the guest admits that he took it: I'm sorry, Mr. XX, but this item can't be given to you as a souvenir.

If the guest doesn't admit it: Mr. XX, have you ever received your friends in your room? Could it be that your friend took it? We will provide all the articles in the guest room, and the supervisor will double-check them. Now the room attendant really can't find them in the room. If you don't remember where to put them, I'm afraid I have to charge you X yuan as compensation.

PS: Find more stairs for the guests. Otherwise, it will be easy to receive money and cause complaints from the guests!