I hate to say it but the next time this situation happens G&J (or you) just have to try to sail that port tack boat in halve and put the skipper into the hospital.

14 AVOIDING CONTACT
A boat shall avoid contact with another boat if reasonably possible.
However, a right-of-way boat or one entitled to room
(a) need not act to avoid contact until it is clear that the other boat
is not keeping clear or giving room, and
(b) shall not be penalized under this rule unless there is contact that
causes damage or injury.