Thursdays in Black

So the PPTA rejected the latest pay offer when negotiating a new collective agreement. I would have too, the rises of 1 percent and 1.5 percent are not very much! So what do the PPTA members do? Do something I associate more with useless tertiary student politics groups (useless because they have no real power or influence at all thus a waste of time) than a group of professionals and decide to wear black on Thursday.