That’s one way to bail before paying the check. Nothing mentioned about ethnicity, so they must be...
Every Sunday after church, my friends and I go to a nice restaurant and have Bloody Mary’s and brunch. Usually there are several black people sitting at the bar with us, everyone is laughing and having a good time. Every single time each black person sends their breakfast back in various stages of consumption - half eaten to almost all the way gone while they complain about the way it was cooked, tastes or wasn’t what they wanted. Their breakfast gets removed from their bill.