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I suggest you read the whole thread and check who crosses the limits.

I will leave the discussion here.

Because it's not going anywhere.

I took the trouble to talk with you and try to reach an understanding because I know you from before and I know your background.

Well, as I said, I'll leave it here.

 2 years ago 

because I know you from before and I know your background.

Simplest way to know someone is the way of expression. Neither i knew you nor your background but through your way of expression i got to know you as well as your background.

It would be below my dignity to respond to you hereforth .