JohnDoe,
I think I understand your point. There are greedy people who always look for ways to get something for nothing...and this usually ends up hurting other people.
But there are also cheapies who take advantage of a minor loophole once in a while...in a cute, endearing way. Like my wife, for example.
And I'm sure DragonLady feels the same about her husband.
Making lemonade from a lemon wedge already given too you and a couple of packs of sugar/sweetner is not in the same league as the guy coming in and eating an extra side dish from the condiment section just because it's free. (This reminds me of a Mr. Bean sketch or maybe it was some other comedian.) I think it boils down to the attitude or the intention of the patron.
Anyway, I've tried some of my wife's attempted "lemonade," and I have to say it does not deserve to be called such. It tastes exactly like sweetened water with a squeeze of lemon. Hardly the same as the drink they sell at the restaurant with the high fructose corn syrup and the artificial flavoring and the high price.