If we get people in admissions or the emergency room who only speak the slavic languages, I am happy to help. It makes them happy. When they are feeling better, they appreciate it. Most people are nice. Sometimes they are very tired.
Different people have different personalities.
I understand that something may have happened. Sometimes people are not in a good mood, so I ignore it. I avoid arguments. The next day they are in a better humor. In my country I worked in a laboratory, but I like this job better because I like helping people.