Then, right before you leave, there's a tip jar staring back at you. I spent years serving and bartending, so I know how much restaurant workers depend on people tipping to survive. If someone is taking care of my table, making my drink, or going the extra mile, I'm more than happy to leave a generous tip. But, when she reached the checkout and saw a tip jar, she couldn't help but wonder what exactly the tip was for. I think what they're questioning is whether every transaction should come with the expectation of one.