I feel a bit differently about the Dutch side adding a service charge, because it's clearly a separate item on the check, and not a deceptive practice. I've never had service so bad that I wouldn't leave at least 15% on the Dutch side, but I don't add more if they add it on. As far as the TOT is concerned, I've never seen that added to a restaurant check, but it's such a small amount it wouldn't bother me to see it, especially on vacation. Life's too short.....

Here in the US tips are discretionary; in other countries they are not.