In the U. S. all states, except for Montana, you are hired by default under "at-will" employment. This means they can fire you for any reason as long as it's not illegal like discrimination. At the same time you can leave at anytime - without 2 week notice. They can't come after you, but they also do not have to pay out accumulated vacation, sick, or PTO hours. In short, they can fire you for poor productivity or really anything without cause, but they can risk lawsuits if other employees are also performing poorly or poorer, yet are left with their jobs intact. It can be grounds for wrongful termination if discrimation is suspected or argued. Say 60 year old therapist who cannot keep up with 90% productivity, or even 30 year old PT with a documented disability. Anyway, here is verbiage I would use if pulled in to the office "I wasn't aware that I needed to maintain 90% productivity standards, how is it measured? And if that is the case, can this be formally announced to the therapy team and updated in writing so we're all on the same page?" this will get them to cool it or get their staff to find other jobs really quickly.