any position of the plunger, without substantial force being applied therebetween.
While the foregoing configuration of the hook members on the plunger facilitates the engagement and disengagement of the driving mechanism, without change in the position of the plunger, it also is true that the hook members themselves provide only a very small contact area for mating with the head of the driving mechanism, when the driving mechanism is in driving or retraction engagement with the hook members.
There is thus the danger that the head of the driving mechanism may disengage from contact with the hook members during operation of the syringe, so that subsequent rotation of the driving mechanism to effect disengagement actually effects re-engagment of the driving mechanism with the hook members, in turn causing retraction ofagreement. Among other things, the agreement established the 2002-03 calendar for the school district. Specifically, the agreement provided that January 14, 2003, would be a school day, that February 14, 2003, would be a paid holiday, and that any makeup days would begin on June 16, 2003.
At a meeting, which took place in October 2002, representatives of MEA and the Marysville School Board (Board) discussed the possibility of MEA members attending a "Day of Action" rally in Olympia on January 14, 2003. The representatives of the MEA and the Board who were present at the meeting agreed that if the association were to participate in the rally, the makeup day would be, as the collective bargaining agreement provided, June 16, 2003. On December 2, 2002, the MEA announced