Not sure why people cast doubt over peoples claims of appalling behaviour. I've witnessed it 3 times, got involved once to help the victim and apologise I didn't film it for you.
Knowing someone who is Cruise Security Manager and not just one, they let me know exactly what goes on. Obviously P&O try and keep it quiet as doesn't give a great impression. Always dealt with swiftly, confine to cabin and handed over to police at next port and banned from cruise company for life.