Do you want to sue, or to vent? One is easier (and cheaper) than the other...
If someone has done you wrong, taken something that's rightfully yours, and you're mad at them, there are many things you could do. Some of them, for legal or moral reasons, you wouldn't consider. Some of them, like suing them, you might consider. Or, you can just let it go and talk it out with someone.
I talk a lot of people and small business owners out of paying for and pursuing litigation because I realize why they're doing it. They want to use lawyers and litigation as a sword, rather than a shield. There are times, of course, when litigation makes a lot of sense and has a nice added emotional benefit. However, if you're primarily suing someone (or filing a motion, or whatever) because you're mad or hurt, you might find you're going to drag out the pain and suffering for yourself as well. At day's end you might find it wasn't emotionally worth it, let alone financially worth it.