1541
Cannot imagine that level of satisfaction
(startrek.website)
General rules:
Exceptions may be made at the discretion of the mods.
In the US requiring a schedule is one of the factors that's considered when determining if a contactor should be an employee. Other factors include if you're telling them how to do the job, or who provides the equipment. You can get in trouble if you're hiring people as contractors that should be employees.
https://www.irs.gov/businesses/small-businesses-self-employed/independent-contractor-self-employed-or-employee