I will only brainstorm for you, you should write the paragraph by yourself.
Respond:
1)Not today, but maybe tomorrow
2)Smile
3)You can share your feeling about why you are upset
4)Take a deep breath and try to relax and calm so that you don't say something harsh to others.
5)You can ignore them
6)say sorry even if it was not your mistake, be polite.
7)go to restroom, wash your face, be fresh. It will help to maintain cool.