I used to work as a waitress, never asked or hinted for a tip. I think that is so rude. Here lately when I order delivery, I fully intend to tip. But when the order is 30.00 and I pay with 2 twenties, these people feel the need to say, "Do you want your change?" I feel like telling them well now that you asked yes all of it. But, I tell them yes, with the difference in the tip. Do you think it's rude to ask for a tip? I do. I also think it rude not to tip.