The best answer to your question is that each bargaining unit employee (union worker) is held accountable for his own numbers and actions. When you help somebody appear to be performing well all week it hurts them in the long run and it hurts the operation as a whole. Now when there's a fuster cluck happening but the supervisor who likes to run around putting out fires isn't at work, it looks like everybody is suddenly having problems. Let's say you're on vacation and come back to hear the driver claiming that the new guy was able to keep up with no problem, insinuating that you aren't doing your best, when in reality the driver wasn't at work yet while the supervisors were helping load his area. When you tell the driver that the loader had help all week, he tells you you're making excuses and doesn't want to hear it. Another serious issue is when a supervisor intentionally helps certain people and ignores others, causing the person who didn't get any help during a fuster-cluck to appear like he was the ONLY one slacking or not able to keep up. The reasons said workers might not get help could be because they've reported supervisors working in the past, and what better way to punish that worker than to not give him help during a fuster cluck. This is tantamount to walking up to him and punching him in the gut and walking away, not that I'm trying to give any prick supervisors any new ideas to torture the workers they don't like.