From what I have seen working on the floor of a Union plant I wouldn't say 90% of the people started out being lazy. The problem is, you get one lazy person in a group, with the structure of a union the rest of the people that work hard have no chance in earning a higher pay than that lazy guy that is fucking around, taking long breaks, etc. So the hard workers see that the lazy guy is getting by fucking off so they start acting like him because he gets away with it and keeps getting paid what they get paid so they might as well slack a little too. The next thing you know any changes made to increase efficiency aren't nearly as effective as they should be. Production is slower than it should be so the company is losing money based on the fact that they can't turn out as much product as they could be due to people fucking around. A whole culture is created that adversely effects everything. To top it all off if someone in management tried to do a little something here of there to pick up the slack from the guy that is fucking around, a grievance gets filed and someone on another shift that doesn't need to be there because there isn't too much work, someone is just fucking around, gets paid overtime even though they weren't at work and there was no need for them to be there.