Just what does "negotiating in good faith" mean to trade unionists. Consider this story from News24.com about the truckers strike.

It started at midday when the protesters, including those from the SA Transport and Allied Workers Union (Satawu), smashed the windows of 10 trucks, pulled drivers out of their vehicles and forced them to join the march.
Baloyi said the unions would meet with the Road Freight Employers Association (RFEA) in Boksburg at 10:00 to negotiate their demands.

"We are going to negotiate in good faith to resolve the strike," Baloyi said.
I guess negotiating in good faith does not preclude intimidation and malicious damage to property then?