Then the laws need changing!
I agree that going nuts will cause trouble, but where do we get this common sense from? Who dictates what common sense to use? Is it not common sense (tied in with safety) not to give the away team a penalty infront of 54,000 home fans who may start breaking chairs? (obviously thats early in the game not near the end!).
I think my point is that common sense is subjective, and as we saw the boy Murray's common sense was up his erse. The rules should always be followed, that's what they are there for and the added on time is a good example of where they clearly are not being followed in Scottish Football.