If that had happened in Germany, Brenda would have provably committed an administrative offence and should stop unless they want to go to jail:
§ 4 Rest breaks
Work shall be interrupted by predetermined rest breaks of at least 30 minutes for working hours of more than six to nine hours and 45 minutes for working hours of more than nine hours in total. The rest breaks referred to in sentence 1 may be divided into periods of at least 15 minutes each. Employees may not be employed for more than six consecutive hours without a rest break.
§ 22 Penalty provisions
(1) An employer commits an administrative offence if they intentionally or negligently
- contrary to § 4, do not grant rest breaks, do not grant them for the prescribed minimum duration or do not grant them in a timely manner
(2) In the cases referred to in paragraph 1, nos. 1 to 7, 9 and 10, the administrative offence may be punished with a fine of up to thirty thousand euros [...].
§ 23 Penal provisions
(1) Any person who commits one of the acts specified in Section 22(1) Nos. 1 to 3, 5 to 7
- intentionally and thereby endangers the health or working capacity of an employee, or
- persistently repeats, shall be punished with imprisonment for up to one year or a fine.