Answer:
Guy de Maupassant used comedy in his short story through the narrator's anticipation of his friends' supposedly playing tricks on him. He made use of the narrator's cautiousness such as "inspecting every article" in the house that seemed suspicious to him. This is comical in nature because he wasn't really sure whether there was, indeed, a prank (practical joke) or he was just imagining it. Such kind of feeling is a "weakness" when it comes to human's nature.
Explanation:
The question above is related to the short story entitled "An Uncomfortable Bed," written by Guy de Maupassant (a famous French writer).
It centers on the character of a wealthy man who was very suspicious about his friends, especially whenever he would spend time with them.