Chicago's Old Neighborhood 1

Management at QC location not especially friendly; decided to try the Mesa location, where I encountered the owner of both restaurants.
Here is what happened:
1. Owner got exasperated when I didn't understand something he was asking.
2. He started yelling over a further misunderstanding.
3. He went off a third time when I tried to straighten things out after getting the order.
Conclusion: No food is worth such grossly unprofessional treatment. Do yourself a favor--go elsewhere.