Sometimes, being a server sucks the soul right out of you. The long, uninterrupted hours of being on your feet all day, having to “turn it on” for every table even if you're in a sh*tty mood, and the fact that you have to rely on entitled and cheap humans to tip enough so that you can pay your bills.
When people go out to eat, some act as though the entire world revolves around them. While (most) servers will do anything in their power to make you happy, some guests make it very, very difficult. Like, maybe don't come to a steak house if you're a vegetarian and then scream at the poor server who has no control over the menu. Or maybe don't get upset when the server isn't able to split up your tab SEVENTEEN different ways.
There's a special place in hell for a**holes who tip five on a $200 tab, and servers always remember.