Mid-shift crisis

Essentially a mid-life crisis, but scaled down in a single work day, where everything is going wrong.

Real life example (for context I work at a restaurant)
Me: "We are out of napkins, the silverware is empty, and a tiny child is running around in the buffet area with no parent to be found. I am having a mid-shift crisis right now."

I'm just happy to be here

The kind of thing you say when you are put into an awkward scenario and you don't know how to react.
Real life example of mine below:

Girl: "So we want to get weed for 5 people tonight" (proceeds to look at me)

Me: I mean, I'm not really into that kind of thing. I'm just happy to be here.