Rules Analysis
Fouls (II.E): It is the responsibility of all players to avoid contact in every way possible .
Avoid contact in every way reasonable possible, while still playing Ultimate. Some contact is inevitable, but players have an affirmative obligation to make reasonable efforts to avoid contact.
Reckless disregard for the safety of fellow players or other dangerously aggressive behavior (such as significantly colliding into a stationary opponent), regardless of whether or when the disc arrives or when contact occurs is considered dangerous play and is treated as a foul . This rule is not superseded by any other rule.
If no contact occurs, there is no callable dangerous play. Contact need not be severe.The proper call in this case is "Dangerous Play." The caller should then briefly explain the grounds for the call. This call trumps any foul rules and should be used in situations where the play presented serious risk of injury.