"As a diabetic, I stopped by the restaurant when I urgently needed something to eat to raise my blood sugar levels. However, they refused my cash payment for a $20 bill. While they accept cash tips for themselves, they wouldn’t take my cash for my meal. I explained my medical situation but didn’t have any other payment options. Even though there was a tip jar full of cash for making change, they turned me away and watched as I struggled to leave, holding onto what I could to make it back to my car."