In every job interview I've had I get asked the situational questions.
"Tell me about a time you helped someone."
"Have you ever had to deal with an upset party?"
I've worked in health care, EMS, SAR, and child care for years. Sitting there in the hot seat flipping through the countless 800 billion times I've had to deal with a pissed off patient, parent, doctor, etc and trying to pick one shining example is like torture.
I have pre-planned, contemplated my experiences, and typed out a good story for each of the most common questions, but they always seem to have a couple I hadn't thought of.
As a tip for interviewees though, I highly recommend doing this prior to your interviews. Brainstorm stories you can tell and refine them. That way you don't get the deer in the headlights look when they ask you to tell them about a time you made an unpopular decision and stood by it, and you suddenly develop amnesia.
Some of the more common ones I've seen:
-Creative solution to a problem
-Conflict with coworkers/supervisors
-Upset parties
-Made a decision you later regretted or questioned
Etc etc.