Let me preface this question by stating that I'm a youth hockey ref, and we don't have video goal review in our games.
I had a situation the other night where a shooter fired a shot from about midway up the inside of the circle nearest to me, it hit the post nearest to me, and bounced out at an angle of (about 60 degrees) to the other side.
For me, standing at the goal line (probably 2-3 ft from the post it struck) it looked like it had completely crossed the goal line before bouncing out. I signaled a goal, and of course the coach argued emphatically that it wasn't a goal. His argument was that it was "physically impossible for it to hit the side post and bounce out in the opposite direction" and still have completely crossed the goal line.
So, my question is whether or not this is physically possible. In this particular situation, the goal post is itself wider than the goal line by probably almost an inch, so my suspicion is that, if it hit the inside corner of the post, it could bounce out at the angle we saw and still have completely crossed the line.
Obviously, this seems like it would be extremely rare, so whether or not I made the correct call is totally different, but I'm wondering about the physical potential for this to have happened.