The year is 2134.  Meat-based food is becoming scarce.  All nations have finally decided for restaurants & grocers to sell/serve vegetarian dishes on Mondays, Tuesdays, & Wednesdays due to overpopulation & food need.  Beef products can be sold on Fridays & Saturdays only.  Any deviation from these instructions results in business closure for a year w/fines.
https://www.youtube.com/watch?v=AuMdE-r6qcU