UK-based food delivery company Deliveroo uses agreements with its supposedly self-employed cycle couriers that state that the couriers must not challenge their employment status before any court, and that they are obliged to pay all of Deliveroo’s associated costs if they still try to do so:
You further warrant that neither you nor anyone acting on your behalf will present any claim in the employment tribunal or any civil court in which it is contended that you are either an employee or a worker.
[you must] indemnify and keep indemnified Deliveroo against costs (including legal costs) and expenses that it incurs
These clauses are unenforceable. They are kept deliberately in the agreements nonetheless, I’d say. It is about deterrence, about creating fear:
They’re put there to scare the worker. They are going to think twice before they do anything