Coffee and Tea House etiquette.

Some of us forget that our favorite "Central Perk" whether it is "Goldfish Tea", or the "Bean and Leaf" is a privately owned business that needs to show a profit if it is going to remain a going business. 
I would like to suggest that you keep this in mind when you use any RO cafe downtown for its Wi-Fi and/or as a place to catch up on work or study. If after three hours you have not made an additional purchase perhaps you should consider to, or move on. Nuff said?