For starters plough most of your post is non sensical, learn grammar mate!
Point of the post is you never lower yourself by giving the finger. Clearly going that slow around a corner is inconsiderate, there was no reason for it, trucks cop that all the time. I make mistakes on the road and rightly so people toot their horn at me, as long as its not an aggressive hoot I wave a "my mistake" acknowledgement. Everyone moves on civilly, no good ever comes out of giving the finger, for both parties.