Every driver I have spoken to has appreciated the extra help the PVD's have provided them. The most common one is lightening their work load so they can get home at a reasonable hour to see their families. Now for drivers who don't fit that category or care, working longer hours may not be a concern. I'm just saying for the ones I have spoken to they welcome the help. Speaking for myself, I'm not trying to take away a union position and would understand if tomorrow they said "you're gone, we're hiring a full timer who will be in the bargaining unit", I'd understand and thank them for the opportunity to have worked at all. Having read many of the threads here it is clear there are serious adversarial issues between management an labor, and even labor and your own union leadership so someone sees an ad for seasonal work, in this current environment, needs to put food on the table and keep a roof over his kids head, comes here to ask the people he/she thinks will know the answer to and gets the kind of responses many are giving? Be a beacon, be someone others can look to, be the person others remember for the right reasons. You'll be happier in the long run.