I was supt of a ship in Sydney (Oz) when the WWF ordered all stevedores off the vessel as the owners were too tight to supply knifes and forks to the crew. The reason some ignoramus stevedore had looked through the porthole of the crew's mess and seen the Bengali crew eating with their hands. It got to such a stage of being so ridiculous in trying to get them back to work, I had to contact the Indian Embassy (representing Bangladesh) to contact the WWF and explain to their members about country customs. We had already shown the WWF the crew messroom cupboards and drawers full of cutlery and cooking tools but they were not interested, even the Bengali crew were bemused by the ignorance of the WWF, this was in the 1970's
Those who sailed into and out of Oz in the 60's and 70's will know the number of tricks applied by the WWF to get their members a fulls day without actually doing any work, the most used one being rain money, especially down south. If it rained they demanded 'rain gear' if you authorised issue it they would refuse to work as by issuing rain gear you had admitted that it was raining and stevedores do not work in the rain, so they could then go home on a full days pay, don't issue you the gear and you will find that your vessel is short of stevedores on dry days.