Wankers! Having youngs kids of my own I wouldn't hesitate to do similar, I couldn't look in the mirror knowing I didn't try to help in that situation.
On a light note I tried to do a good thing myself the other day, homeless guy outside morrissons in the pissing down rain so I thought I'll get the fella a Cornish pasty. Goes in gets my shopping come out with pasty, offer it to matey and he says no thanks. I thought f**k you you cheeky f****r ? as I'm driving out the carpark there's a woman with her purse out and he's got his hand out taking the cash. That's the last I thought lol