22/7
Pi or π equals 3.14159 (that’s all the numbers we remember off the top of our heads). It’s the ratio between the circumference and diameter of any circle. If you studied basic geometry, you’d know this, but it turns out a lot of what you learned in junior high school doesn’t matter.
This person finally had the opportunity to add a pi tip to their $26.86 to pay an even $30.00 for their meal. Unfortunately, a non-geometry-knowing imbecile jumped into the comments and exposed themselves.