Brian
On this occasion and with the benefit of hindsight, what do you think now? Would you do it again if faced with similar circumstances?
I came across something similar a few weeks ago, saw 3 guys aged 18-20ish with a lurcher walking across one of my fields when out cycling. Instant reaction was to confront them. I have no issue within reason in dealing with aggression or challenging folk like this, but 3 of them? the thought of getting a kicking was not as much of a concern as them having the opportunity to go away and make up a story about me. thought better of it and phoned the polis'. I then found out who they were with a wee but of local digging...
I think what Jamross is saying is that we have to live the way the world is; rather than the way it should be - so whilst you were right to challenge them morally, in reality it resulted in you being assaulted... A good female friend of mine was raped a few years ago, now she should be able to show off her legs and go outside for a cigarette in safety but the reality was there are some monsters out there that simply need putting down!
For the record, I would have done as you'd done as I don't see why I should fear everyone who feels like doing wrong, and I'd rather be dead than live in fear of scumbags all the time. However if I'd had my girlfriend with me I'd have walked the other direction for fear of her being assaulted.