So you're one of the people that sits at Euro Gourmet Foods and sips the same coffee for hours on end huh. Anyway, I am not Bosnian, but IN AMERICA (you know, the place you LIVE), it is common courtesy to tip someone who offers you their services.

Think of it this way.... You are taking up one of their tables, a table in which someone else could be sitting and ordering more than just a coffee, thus their tip would be higher because their bill would be higher than your $2 coffee bill. If you do not want to leave them a dollar, then you should get the shit to go and not take up one of their seats. Dont be a cheap ass.