Unfortunately, there are a lot of jobs in this world that we can often describe as "thankless."
While you're likely to see the most demoralizing customers in retail and in the service industry, those aren't the only sectors in which you can easily become the "bad guy" just by telling those in your care what they don't want to hear.
But every now and then, there are some experiences that make those kinds of jobs worth it. And while they seem rarer than the negative customers, the kindness and appreciation of some customers can be powerful enough to bring a tear to the eye of even the most jaded retail veteran.
And while there was a sad backstory behind one such case for one waitress, it's hard not to be uplifted by the compassion she shared with one diner.