In the tamil movie Kushi, the actor Vijay would call his mom by her name. He would not address her as Amma!. When his friend asks him why he calls her Geetha instead of calling her with respect, he would say that Geetha is her name and names have to be used for calling.
When I saw this explanation given by Vijay, I got a little excited. I went to my mom, tapped her on the shoulder and said "Hi Shoba". Immediately I heard a loud noise. It seemed like the power went off. When I opened my eyes, I was experiencing pain on my cheeks
The next week, I went to my class with my mom's hand imprints on my cheeks
Moral: Respect elders