Probably the best idea yet. Let em' roll.

Funny story regarding our first two dinners at Captain Oliver's restaurant for two couples.. This place is not on par, with places in Grand Case. The views of the Pond is one plus. We ordered a bottle of wine, one would expect wine glasses, they used plastic cups. When the check came they tacked on a 15% service charge as is usual on the Dutch side, however they showed this charge as a "tax" hoping I surmise we would add another 15% which is exactly what happened.
One year later we (same two couples) again dined at this establishment. The to guys went to the wash room as the check arrived. The two gals added 15% over the already added "tax". We could not believe they fell for that again. Funny now but no at the time.