for well over a year now, Jehovah's witnesses have been 'soliciting' on Hungerford bridge - they are there when I go to work in the morning and again when I leave in the afternoon and I suspect are there all day. It's generally a team of two but sometimes three people. I've also seen them at my home station as well; always the same two young guys but they're generally chatting to someone or each other and just watch over the stand with their literature. But the people on the bridge (and also at Waterloo station itself sometimes) are quite active at holding out the literature and trying to get you to take it.... when they first started they would stand at the side of the bridge with their stand; now though they often position themselves in such a way that you have to walk around them or their stand.
Now - I'm not overly religious and just tend to ignore them (although do curse at them under my breath when they're really standing in the way); but I often wonder, if that was a Christian or Muslim group would they get away with standing on a bridge advertising their religions ?