When I was a kid, five of us worked at a big family restaurant on Barry Island. The boss, a wealthy Greek man, paid us well under a fair rate and knew exactly what he was doing. The day before the bank holiday weekend, Peter ' our unofficial leader ' went straight to him and said we'd all walk out immediately unless he doubled our pay and backdated it to the day we started. The boss stared at him for a long moment, did the maths in his head, and agreed. He'd make more in that one weekend than we'd cost him all summer. We walked back to work grinning. None of us used words like 'blackmail.' We just called it winning.