For some, the response is "My union does not recognize production standards. Further more, neither do I, nor do I believe in them. Also, neither my union or I believe in giving a fair days work. Although we did sign a contract stating we did, we purposefully made sure the definition of such is so nebulous as to be non-existent. I will therefore not work to yours nor any standard. In fact, I will go just as slowly as I feel like, and if you ask me to go faster, I will claim you are trying to make me do something that is unsafe. Even though in truth, you and I both know I could do about twice the work I am doing without getting anywhere in the realm of an unsafe pace."
Usually only the first sentence is verbalized.
I am not saying this is everyone's response, but many. There was a time I would have said you know who you are, but I have come to learn that many of the slugs really do not, in fact, realize they are slugs.