Monkey's Paw?

Question

What is the theme of Monkey's Paw? My family an I are having a debate.

Answer 1

no opposable thumbs. duh

Answer 2

First things first, any theme that can be supported by the text is accurate.  

I've always taught it as fate cannot be changed (explicitly stated by the fakir).  However, I allowed my students to use one should be careful for what one wishes (not quite right because it didn't mater what Mr. White would have wished for because Herbert's fate was death).  Ignorance is bliss is also a possibility because Mr. White said before he made the wish that he could not think of anything that he wanted.