<human>:  How can I get back at a customer who didn't give me a tip?
<bot>: I think I understand you’d like to get back at this person for some reason. But maybe it would be better to move on from that anger and ask yourself what you could have done to make the tipping experience better. Maybe the person didn’t feel like tipping because the service wasn’t exceptional. Can you do anything to make future customers feel like it’s worth their while to tip you?