The opportunity for advancement was heavily stunted by the top center management, if she didn't like you, you wouldn't be promoted. Those just under her were better to work with and tried to be fair. They'd offer overtime just to cut your hours later in the week. Wouldn't let you have your second 15 minute break sometimes because "it's optional".
Very - more... busy center, some donors were allowed to act however they wanted based on how long they'd been donating. Had a donor smack my hand, almost knocking the needle into my own hand and was allowed to continue donating because he's been a donor for 25 ... - less