Thanks @siggy47! My dad is a pure gold in when it comes to remaining cool!
Yes, he was rude but It's kind of abundant in Indian ways. People who are elder have a tendency to ask and suggest younger people without being asked for. I'm okay when someone who is well informed puts forward his views, bitter or sweet whatever! I won't mind. But when someone goes on making claims and suggestions with little research behind it, I just can't tolerate such stupid people no matter how much older they are.