Oh great comeback there 
Not looking to comeback mate i've made my opinion clear and stand by it. I'm not looking to win any arguments here. I fail to see how the other side thinks its acceptable behavior. The situation could have been dealt with more effectively without suddenly resorting to physical manhandling.
A small point i may add is that all Scotrail ticket collectors are specifically trained to deal with these kind of situations and deal with them regularly. An issue like that is not a problem if dealt with accordingly. Its not as if it was a drunken lout who posed an immediate threat to anyone.
It is very easy to say that a situation could be dealt with better after the event, people will react however they react at time, for what they see is right.
I think its to do with upbringing personally. I would not of dared be so disrespectful, rude and then abusive to an old man like that. Some
times if a person causing a situation, it can in certain people's opinion get out of hand.
By refusing to leave the train, the kid was breaking the law. The passenger only intervened as he thought that the conductor was being intimidated and abused. A member of public is allowed to intervene by law in such circumstances. Whether you believe the force used was too much is down to your opinion. The fact still remains, i believe the passenger acted in good faith.