That's what they tried to do indirectly via college students. Due to labor agreements with the union, everyone had to join, but most college students didn't sta

That's what they tried to do indirectly via college students. Due to labor agreements with the union, everyone had to join, but most college students didn't stay on and pay the full union dues when they knew they'd be heading back to school. Every hire had a 3 month probation period, but they couldn't just hire a ton of people every summer and systematically terminate their employment after the 3 months when the summer was over.