Unfortunately, being on a court is like being in a cage. I like courts with two exits or more. I've had mean and crazy dogs show up on the court. Choose the place you play or teach carefully for the social environment. Don't make enemies with locals and resolve disputes as peacefully as possible. Maybe they'll offer Kevlar racket bags soon. Finally, use situational awareness to see it coming. If your eyes and ears tell you something, believe it, meaning skedaddle.