My thoughts? Don't do it. Unless you're willing and amenable to doing it the next time, and every other time after that. Petty revenge may become a bad habit. Forgive me for preaching, but I might as well give the 'upright' response, because it should serve you better in the long run. Or, at the least, it won't serve you worse. From what you've said, it doesn't seem that anything serious was allowed to happen. Unless there's something I'm missing, you should let it go. Hopefully, staying away from this person will be good enough, and if not, then do what you must. But only then.