We haven't been arrested for the work we do with the homeless in Cardiff, but there has been a considerable amount of tension between ourselves (the overall group, Rainbow of Hope, that is rather than the small group I help every 4th Thursday) and Marks and Spencers/Cardiff Council.
Until about 2 years ago, there were 2 'soup runs' for the homeless in Cardiff - one run by the Council and one by Rainbow of Hope. They catered for different parts of the city so there wasn't a problem there. However, there was an overlap of clientele because the council one started at 7.30 and ours at 8, allowing people to cover the 2.5 miles between the sites in time to get '2nds' from us if they timed it well!! At the same time, we were using a church grounds just behind Marks and Spencers in the centre of town and they weren't overly enamoured of a bunch of homeless folk hanging around outside one of their entrances, especially during Thursday evening's late-night shopping session (which closes at 8pm). They threatened an injunction of some sort - but it never went further than that.