There's a lot of "If he did that to me, I would have...." posts. While these are all perfectly valid feelings, I would like to add some thoughts which may help to figure what may be the best course of action if and when you do actually end up in this situation:
- If the person does not realise the implications of what they have done, then going nuclear on them may prevent them from doing it again but it doesn't seem fair to me. The failure is not on their side IF they genuinely don't realise the consequences. This, to me, would be a failure on the part of those responsible for training the individual.
- The fact that this person has been banned summarily from other boats indicates that they have still not really understood what they are doing. Since banning hasn't worked, maybe a different approach is in order. I would always prefer a course of action that results in one more "good diver" than one fewer "bad diver".
Of course there will always be those who are unable/unwilling to learn and if thats the case then they should be banned, but only after a genuine effort has been made to correct them. Unfortunately that takes time and effort and care, which may not be available from every captain and instructor and "victim".
I am glad that, in this case, those resources were available and deployed freely and generously.