There was an incident yesterday. I was driving in the subway, I sat in the headphones listening to music, a man in a wheelchair and asking for mercy, comes to me, stretches his hand, I remove the headphone, I got the little stuff from the backpack in my hand was a coin of 5-7 rubles to 5 rubles and the same amount of 10 rubles, picked small coins and put him on his hand, and he said to me, "you, sorry what, you are a young man, you will still earn." And then I remembered the story where a guy gave a man 50r, and he asked for 100. I took all the coins and turned on his headphones. There is nothing to negotiate.