Sadly there has been crew-on-crew violence in the form of one chef attacking another on the Constellation. The victim was rush to a local hospital in critical condition.
This brings to mind something that I've considered quite extraordinary up to now. Ship crew members from all over the world and all walks of life appear to co-exist peaceful for long periods of time away from home. It has given me hope that the general population might also be able to do this some time.