real life ukemi no ukemi
This is in response to the "real life ukemi" post.
I've never used aikijutsu in real life; aikido - many times - but never a physical technique in response to a real threat.
I would strongly urge you not to throw the attacker in real life, but rather to end the confrontation in osae-waza (pinning). Once the attacker has been controlled, add gradual pain until he shouts "ushiro" or "uncle" or something of that sort. If you truly believe this won't phaze him/her, consider the next step with resignation and mercy.