I was crossing Dundas at Bay one busy summer day as a stooped-over, rough looking, older woman was dragging a suitcase across in the same direction as I was going. She was having a lot of trouble pulling the suitcase over the streetcar tracks and the light was changing. Trying to be helpful, I instinctively grabbed the handle of her suitcase to pull it to the curb for her.
But, instead of accepting my help with her bag, as I expected, she screamed. It wasn't a normal scream. It was this incredibly loud, horrible, crow-like scream. It startled me and I let go of her bag. She was strangely oblivious to the traffic. To her, I was a thief and she had just driven me off.
By now the light had changed and she was in real danger, still pulling her bag. The traffic was quite aggressive and she was so small and low to the ground that the cars, distracted by each other, might not see her.
So, instead of trying to help her directly, I just stayed with her. I stood up tall, raised an arm to get signal the drivers and walked slowly beside her while she pulled her own bag. She remained oblivious to my presence, so I just walked away when she reached the curb.
It took a minimum of my time and effort and I doubt that I took much of a risk. My actions might not have mattered, or they might have. It doesn't matter. What matters is to try, even just a little bit. And when a direct approach to help, backfires, try an indirect approach.