I worked for a business whose services included children's birthday parties. I was to do the setup and then entertain the kids: "If the children are happy, they'll make their parents come back."
On my first day of work, I was shown my job as quickly as the owner possibly could. We're talking maybe ten minutes total of explanation.
Then the owner was rushed to the hospital, where she stayed for over a week.
Suddenly I had to do a birthday party for 20+ little kids. Both food vendors messed up, and the kid's birthday cake had to be fetched while I started the party.
I spent most of the party making sure kids weren't swinging their golf clubs in the air or climbing on things they shouldn't be. I also spent quite a bit of time keeping them on our premises since the birthday girl's mother was busy talking to other parents and ignoring the children.
When the owner got back, she informed me that the mother of the birthday girl had "felt ignored." I wasn't hired to entertain the parents; I was hired to interact with the children. But despite the manager saying I was the hardest working employee ever, the owner decided I wasn't a good match for the job.
Before she could fire me, I quit.