Article 11, Section 3, Subsection 7, Paragraph 2 of the FOO!ball Player Behavior Contract states that "No player shall engage in any behavior that may be perceived as threatening or menacing to other players, including, but not limited to: excessive use of 'I'll get you next time' or 'I'm gonna dunk you', or 'You're going down', or any other phrase that may be interpreted as a declaration of impending doom."
Appendix: Officially Recognized Menacing Phrases