On the other hand, if you know beforehand that you are expected to compensate the service staff outside of the bill from the establishment, you should factor in your comfort level with that arrangement before you order, not act like it is some obscure thing you'd never heard of being done.
On the other hand, if you know beforehand that you are expected to compensate the service staff outside of the bill from the establishment, you should factor in your comfort level with that arrangement before you order, not act like it is some obscure thing you'd never heard of being done.