We went out for dinner tonight, and I have a bit of an 'etiquette' question about tipping...
Italian restaurant (great place), four people. We had a coupon for a free pasta dish with the purchase of a pasta dish and two drinks. We got four dishes, an appetizer, and 2.5 drinks (2 alcoholic and one pop). Anyways, the bill comes. The cheapest pasta dish (which would be free from the coupon) was $11. The GST (5%) was around $3.75.
Generally, I try to tip around 15%. Which means tripling the GST, so about $12. Since that was about the price of the free dish, I just paid the whole bill on my card, then added $3 in change on the table (service was really good, despite a HUGE group of 15+ people, and the dude forgave my mangled Italian and even gave me an impromptu lesson.)
Anyways, afterword one of the people out for dinner with us gave me heck and said I tipped way too much - that the tip is supposed to be a percentage of the price after
the coupon, and that I basically way overpaid for the meal.
I know it's sort of weird thing to ponder, is basically a prototypical "First world problem", and ultimately doesn't matter, but I realized I don't actually know what's appropriate. Is it convention to apply the tip before or after discounts? I mean, I don't really care, but if I'm ever in a situation where we're splitting a bill, I don't want to ask others for too much money.