if you see that you are interfering with the pro, back the hell off....have some consideration, you are not the one being paid, nor the one binded to a contract to submit good work to the bride....you can very well be messing with the photographers business, complete lack of respect.
Number 1 -- I agree totally with your statement, but assuming I kept on taking photos to intentionally piss the pro photographer off is a mistake.
Number 2 -- I was a friend of the wedding party and was asked to take pictures.
Number 3 -- Once I saw the Pro photographers look I waited until they were done with the photos and politely apologized to the pro photographer and she was very understanding..
Number 4 -- I thought this was a picture sharing forum, and discussion board. Next time I'll keep my comments and photos to my self.