> You can ALWAYS just put down your tools and walk out the door.
Not if you've signed a contract which says otherwise, which of course would make it not "at-will" employment.
"At-will" applies to both the employer and the employee. Either can terminate it without notice.
"At-will means that an employer can terminate an employee at any time for any reason, except an illegal one, or for no reason without incurring legal liability. Likewise, an employee is free to leave a job at any time for any or no reason with no adverse legal consequences."