A case from childhood. There is a popular proverb in Russia: do not sit down not in your own sleigh. (There is not a mistake. We often use double negation in Russian) It's mean that you must not use things which don't belong to you. When I was a child, I checked this proverb literally. It happened more than 20 years old. In that time, I was living in a village with my parents and my grandparents. My grandfather was a veteran of World War II. During the War, he had injuries of his legs so he moved on a wheelchair last years of his life. Once, I wanted to use this one. It was a sunny warm spring morning at the end of May. While my granddad was sleeping, I decided to borrow his transport. I was moving not far because at some moment I couldn't cope with a special mechanism of the wheelchair and... the worst thing happened! It hurt like hell! I soon discovered the truth: I broke my arm. Before I was collapsing onto the road, I was screaming so loudly that my grandmother heard me and ran toward me. She ran to me first but she didn't try to calm down me and lift me! She stood over me and she only was telling annoying: do not sit down not in your own sleigh! do not sit down not in your own sleigh! God punished you! I do not blame her in the odd reaction, I think, she did not understand what it happened something worse than the simple fall. To make thу long story short, I would like to say, it had finished well, I was sent to a doctor, put a plaster cast and my bone recovered in a month. It was my right arm so I had not to do my year's school exams. I had got good marks just.