No, I do not, since a tip is earned from continuous service and attention of an individual in meeting all of ones needs during a meal. Tips are also factored into the wages of waiters and waitresses, to the extent that they get compensated at a lower hourly rate, with tips expected to make the difference. Eaterie workers are not penalized in this fashion, and thus should not expect to get tips.
Sometimes I feel offended at the tip jars that are placed on the counters of places like Subway, etc.