The Lady With Her Suitcase

It happened at the cafe, which name was impossible for me to pronounce because it is in French! I was lining up in front of a casher with a hot beaf stew soup and a cold cheese bagel for my supervisor. It was quite windy out, which made it harder for a customer to push the heavy door to exit. I also pushed the door with my entire strength,almost attacking the door with my torso.Then, I felt someone standing behind me. It was a lady with a black suitecase. She had beautiful blond hair and and nice white fur coat. I thought it was a commonsense to keep holding the door for her so she could smoothly get out the store with her suitcase while she was on her cell phone. Well, she successfully left the cafe, however, I did not "thank you."
I am not asking her to express her graditude to me. She just horrified me with her behavior making me surprised with how inhumane and ungracious a human being can be.
New York is a fast-speed society. People might not see anything but the way to get to their destinations; workplace, home and bars after work.
I found those people pitiful and unfortunate because they are missing the most important phrase in human life.
The phrase "thank you" is simple. Sometimes we forget and underestimate its power and its value. However, this is the phrase we use most in our entire living lives, I believe. Then, isn't it the time for us to remember how warm inside it made us feel to say and to be said the words "thank you."