I can remember clearly when I was a teacher in a Middle School we had student teachers who would take over the classes at certain times. It came to light that one particular student teacher who was of a strongly evangelical disposition was filling the pupil's minds with all sorts of religious humbug, including the threat of punishment by God if they didn't accept Jesus as their saviour. Most pupils ignored her threats but some were understandably confused and upset. She was reported to our Headmaster(himself a practising Anglican) who very soon sent her packing.
Quite recently my wife and I were in Bath. It was a hot day and we decided to have a drink and a sandwich, sitting outside of one of the many cafes in the central area. Soon after we sat down, a small group of people appeared and set up a small table opposite. From here, one after the other, they started on their evangelistic mission, proselytising through a loudspeaker at all and sundry. I don't think that we should have had to endure their particular brand of meaningless rubbish(from our viewpoint), but endure we did as we were already eating and drinking by this time.
I suggest that these are two instances when public expression of religion are totally inappropriate.