What is the best word for being spiteful to your own detriment? [duplicate]

When you are so mad at someone that you make a bad decision, even though you will be harmed by it as well, in order to harm that person; is there a good term for this?

For example burning $100 because he owns $20 of it.

"Cutting off your nose to spite your face" comes close to what you are describing.

For a single word, you can consider spite, which means to go out of one's way to harm another for a perceived wrong.

In other words, it means to do something unnecessary (which means there is a cost) to harm another for what may be no legitimate reason at all.

An example is the spite fence. This is a fence that is put up for no other reason than to annoy a neighbor. It is generally done so at some cost to the one putting it up (for the material or at least the for labor).