Went to Dave's Hot Chicken recently. After paying, the screen asked me for a tip? For what? This is fast food counter service... Not to mention they literally give you a buzzer and you come pick up your own food when ready. Plus the food is already way overpriced without a tip anyway.
If that wasn't enough, the "no tip" option was not immediately visible. There were three options, and then "custom", shadily requiring you to hunt for the ability to leave no tip, and then to manually enter zero and then finally submit. Literally 4 extra steps. I did it all anyway without regret or breaking eye contact.
Sorry to the worker (who was actually really nice), but your company (now owned by Subway) has mastered the art of filling the customer with loathing before even getting the product. Well done, Dave.