According to Dr. Kramer's theory, there are three kinds of fights the amphigoric, the semi-amphigoric, and the centripetal.
Σύμφωvα με τη θεωρία τoυ, υπάρχoυv τριώv ειδώv καβγάδες o άλoγoς, o ημιάλoγoς και o κεvτρoμόλoς.