My father passed away long time ago, when I was young. But if I could talk to him today, i would apologize because I've ever cheated him.
When I was school boy, my father often opened my bag to see my test result, and he always look sad when he noticed that I got bad score.
One day I got bad score again. But I didn't want my father know it. So I threw away my test paper and made a fake test paper with good score. My father saw that fake test paper and looked proud. By I felt very guilty because I had given him a false happiness. However, I was not dare to admit and I kept this secret until he passed away.
So, if I could talk to my father today, I would apologize. I know, he would forgive me, he would smile at me, like he always did to me.
May Allah give true happiness for my father and my mother in janatul firdaus.