I don't think they would have any reason or cause to question you. You are not obligated to purchase anything from them! My ex doesn't like tap water, so he would take bottled water everywhere and drink that. No one ever said a word. When the server asked if he wanted anything to drink, he would say he already had his drink and proceed to order. No questions ever. Soft drink and tea prices have become outrageous, IMO, so I very rarely order anything other than water (unless we are having a glass of wine or beer or something). It's just absurd to pay $2.xx for a drink when I can get a 12 pack for the same price at the store.... I like water with lemon better than I like water with the mix in it; otherwise, I'd be taking those packets all over with me, too....

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Kim