One girl put acrylic paint on the other girl's shirt (actually by accident). The girl with a paint on her shirt immediately turned around and put paint on the first girl's shirt. The first girl said: "Ms.Lena, look what she did.." I turned to the class and said: "Oh, well, that was not a great decision but who actually can tell me why?" Another girl said "Eye for an eye will make the whole world go blind?" Love my students!