Lesson of life

The young man entered the bus and was very happy: enough storage space, have a seat wherever you want! He sat at the window, because he had to go to the final.
The bus started its journey and after 20 minutes was filled with people. The young man sat, listened to music and looked out the window, when suddenly an elderly woman patted his shoulder and said:

• Shame on you! I conceded a senior place! And you…
  It was joined by a second:
  -That's youth! Sitting here healthy, a young boy, a sick old woman should be!
  Literally after 2-3 minutes the guy jumped the whole bus. The young man could not stand all the pressure and said:
  -Nicely. I'll get up. But this place sits only one who will not be ashamed of his words.
  Of course, his remarks shocked everyone, but they did not stop swearing. The boy began frantically to get something from under the seat. Here is appeared crutch, then the other. The guy stood up from her place, leaning on them. All froze with amazement. No one could, no one wanted to think that this is possible... and an elderly woman, nervously advancing on his feet the whole way, now I understand why he didn't pay any attention to it…
  Of course to stop the bus rode in silence. The boy rode standing on crutches the whole way, although it was difficult, but he was standing.