Do we have to?
I just walk away. I find people like that really annoying.
if its professional one and they are paying me, i would incessantly tell my opinion. But if its not the case, esp if they are not a family member or a loved one, i'll shut up and move on.
Stop talking. I know in my head that i'm right and you're wrong. And when i'm proven right then you will see you should have listened to me in the first place.
you cant deal with them we all agree to disagree at times