Some people have more guts than a slaughterhouse. Just heard on the news that restaurants in Vancouver during the Olympics will be charging a minimum of 18% gratuity for tables of 6 or more diners. Where do these people come from with all these balls? Tips are supposed to be a voluntary show of good service. 10-12% is plenty. Especially considering the cost of meals these days.
Some restaurants down here do that, you can still cross out the 18% figure if you want and input anything you want. Tips are never mandatory. They are a gratuity for good service.