I have only read two posts today and both mentioned their manager “made them keep working”.
No one can make you stay somewhere unless you are being detained or under the threat of violence! Yes, losing your job might be devastating financially but if there is a threat of you being physically harmed by the work or you witnessed something disturbing.. you don’t need permission to leave!! (You may know what posts I’m talking about and I have nothing but sympathy for those OPs)
I do understand if you’re under stress you might just blindly do whatever you are told. But you can 100% just walk out and not continue putting yourself in danger.
From another IRL story of someone I know: even if you work in a secure facility with medical staff who tell you you’re fine- you can STILL leave. You have a right to call an ambulance. Just get yourself out of the gates and get help! Fuck em.
TLDR; you don’t need permission from your manager to leave!