I saw a post tonight on Facebook RE a man praying on the floor of the train as it was a long journey, he went to the quiet part of the train and a "friend" on Facebook posted a photo of the man mid prayer, saying he was basically an inconvenience and a nutcase and he scared her. This offended me but I put it down to "ignance" it was the comments that followed that really shocked me "should have kicked him in the head" "I would have booted him out of the door while it was moving" "probably saying thanks about what just happened in Paris" "he's encroaching on peoples space can't he be more considerate after what's gone on"
Praying on the floor of the train? Seriously? 
The violent comments about kicking him - same as the violent attacks on mosques in Paris - I think these are violent thugs who love a good excuse to hit out and if they do get caught, you soon find that this is not their first time acting violent towards innocent people.
The comment about being more considerate - I see where this one is coming from. It's like rubbing people's face in it I think. Like 'I know people are worried about Islamic extremism at the moment, so I'll just get on the train floor and start doing my prayers.' Seriously? What will his God do to him if he waits until he gets home to do his prayers, hmm?
Nothing to do with religion, it's just not polite to do this on a train, same as people who brush their hair, do their makeup, floss their teeth, clip their toe nails, etc - they should all wait until they get home.