"Good evening Mr Commuter. I appreciate that this is a train you catch regularly, and this is your city, and indeed your country, in which I am a temporary guest.
I have taken it upon myself to make a decision for you about the suitability of boarding this carriage - to wit, it is somewhat too full for you to board, and I am concerned about your health and safety.
Unfortunately I am not a fluent French speaker, so I am unable to convey my message of care and concern verbally, so I am obliged to do so physically, by preventing you from entering the carriage of your choice, even though the other carriages are full, and as a commuter, you will be perfectly used to squashing in for a couple of stops until the carriages empty a little.
Obviously my well-meaning push has not been understood, and you have again attempted to join the train, against my better judgement, so I feel the need to give you a hard shove to underline my care and concern for your welfare, and my colleagues, similarly concerned citizens and guests of your city and country, feel the need to move forward with angry faces, chanting racist slogans.
I would not of course with you to interpret these actions and chanting as being in any way threatening, or linked to your ethnicity - indeed, how could you come to such a conclusion when our concern was only ever for your welfare and security.
I look forward to visiting your country and city again, and I am sure that the behaviour of myself and my colleagues has done much to cement international relations between our two nations.
Vive le difference!! (Whatever that means!).