There was a kid who lived with his mother. Kid used to hate her mother because she had only one eye. He used to feel embarrassed. Mother used to work as cook to support the family and his kid studies. One day mother went to kid school to meet him but kid was so embarrassed. He thought to himself, "How could she do this to me?". He ignored her and ran out. Next day a boy from kids class commented to him, "Eee, your mother have only one eye!!"Kid was so embarrassed that he wanted his mother to disappear. That day after reaching home confronted his mother and said, "Because of you people make fun of me. why don't you die?" Even after listening to this his mother didn't respond. All his childhood kid just thought of getting out of that house anyhow. So, he studied hard and got a job abroad. There he got married, had kids and  all the comforts and was very happy with his life away from his mother. One day his mother came to visit him. She hadn't seen him since he left and for the first time she was going to meet her grand children. As she rang the bell and stood by the door her grand children opened the door and after seeing her they laughed at her not knowing who she is. When his son came at door and saw her. He started screaming at her, "How can you come to my house uninvited and scare my kids. get out now and never come again.!!"To this his mother replied, "Oh, I am so sorry. I may have gotten to wrong address." And left. One day he got a letter from his college about reunion. He was excited to got here. After attending reunion he went to old shack. There his mother neighbor told him that she passed away and gave him a letter left for him. He opened the letter and started reading it. "My dearest son, I think of you all the time. I miss you a lot. I am really sorry that I came to your house and scared your children. I was so glad to hear that you were gonna come back for reunion. I don't know if I will be able to get out of bed to see you. I am sorry that I was a constant embarrassment when you were growing. you don't know that when you were little, you got into an accident and lost one of your eyes. as your mother I couldn't stand watching you to grow up having just one eye. so, I gave you mine. take care my dear. love you." 
You never know what your parents had been through to see you happy. So never judge them and respect and care for them always. 