On this day, 8 September 1931, an Australian rules football match between West Adelaide and Port Adelaide was boycotted by a number of Port players because West Adelaide had selected a police officer to play and he was known to have been involved in protecting scabs and breaking pickets in an earlier waterfront strike. The game still went ahead but West Adelaide were heckled and abused and at one point when the ball was kicked into the crowd it came back sliced in two.
More info in this radical history of Aussie rules football: https://libcom.org/history/1883-today-the-radical-history-of-aussie-rules-football https://www.facebook.com/workingclasshistory/photos/a.296224173896073/1522940267891118/?type=3