I had a customer once who ordered their steak “medium-rare, with no pink in it.” This led to a back and forth discussion about steak doneness that the server had to relay. The customer was informed that medium-rare involved the steak having quite a bit of pink meat and that perhaps they had a well-done or medium-well in mind. No, they always got medium rare with no pink in it, they would never eat steak medium-well or well-done, they wanted medium-rare with no pink in it.
Finally, we cooked them a well done steak which they pronounced to be “Just what [they] ordered. That wasn’t so hard now, was it?”