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Etiquette that should be used at free events, such as not going for seconds before others have had firsts or leaving a generous tip.
Freelancer: We should leave $10 in the tip jar before we leave.

Freegan: Why?
Freelancer: We each had our two free drinks, the bar tender is working like crazy with all these people here. It's good freetiquette.
by the18thcenturyfox July 26, 2011