If it feels like you're constantly being imposed upon to tip, that's because you are; but according to etiquette experts you aren't always obliged to do so. There are five specific circumstances where you do not need to tip.
One: anyone who earns are a salary or performs a trade, such as a doctor, lawyer, teacher, plumber or cable technician.
Two: Counter service, such as a barista or a cashier. ('The general rule is that somebody stood at a coffee shop counter or behind a check-out screen is being paid minimum wage - so there should be no obligation to tip)
Three: Open bar events. the host of that event has likely already taken care of the tip.
Four: restaurants or other services where a twenty-percent gratuity is always added to your bill.
Five: And finally, you don’t have to tip if you believe you’ve received poor or rude service.
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