Get a dog and train it
The first and most basic thing that you can do, is to get a dog and to train it to sniff out and attack the Fed Ex delivery man.
You don’t need to train it to attack him, but just to intimidate him, this will get your revenge on the person, and every time they make a bad delivery, you can ask the dog to go a little crazier on them.
Soon enough they will figure out the trend and leave you alone.
Install a camera
The next thing you can do is to install a camera in your garden. This way you will be able to monitor and track the movements of the person who is delivering your packages. This will ensure that they are kept in check at all times and should they make a bad move, you will catch them on tape.
You can then take this tape and then show it to their supervisors, who are bound to get in touch with them and give them a piece of their mind, based on their performances and the level of commitment that they are showing in going about their day to day business.
Paint ball guns
The last thing you can do is get paint ball guns and strategically place yourself in your garden. Now you can wait for the package and Fed Ex person to arrive and then watch their moves.
Should they handle your package without any care, you can unload a whole bunch of paintball bullets on them, just to let them know that you are onto them.