No. I'm quite content to let God handle my case with them. He can do so more thoroughly than I ever could! Also, it is important to learn to forgive immediately. Keeping a grudge is like drinking poison hoping the other guy will die from it. Forgive them, stay out of God's way, and let Him handle it. He will.
Invoking any kind of demonic/occult spell would harm me and my relationship with Christ. He has said that you cannot eat bread at the devil's table and at His. You have to decide, one or the other. I'd strongly suggest, Cara, that you go to Him and repent of dabbling in the occult before it bites you in the butt. The Name of Jesus is way more powerful than any occultic practice.
And just an aside...it's not unreasonable to expect neighbors to keep their pets on their own property. Many places have leash laws for cats as well.