Do Not Try At Home
As a child you were probably told "don't put utensils in the microwave!" because you would "burn the house down!". But why were we told that? Would our whole world come crashing down if you forgot your spoon in your cup of hot chocolate when you put it in the microwave?
http://diet.allwomenstalk.com/healthy-ways-to-satisfy-your-sweet-tooth/4/
The good news is your spoon, microwave,
and cocoa are all probably safe! The shape of the utensil and
the type of metal it is made out of is really what dictates
how dangerous putting a utensil in the microwave actually is.
Because spoons are rounded and don't
have any really sharp edges, they are less likely to cause the
electrons in the spoon to spark. It's wide shape actually
spread the electrons' charges out, too, making the charge
distribution more even and less likely to spark.
But forks are another matter. Forks have pointed corners at the tips of the tines, which is just where excited electron like to hang out. When placed in a microwave, the electrons in the fork get very excited and begin sparking at the tips of the tines, where it's easier to lose electrons.
http://www.mnn.com/food/beverages/blogs/what-to-drink-this-weekend-red-wine-hot-chocolate