There are many good things that I do for others, but I don't have time to list them all.
The latest example I can think of was last weekend when I was driving down the interstate. I was eating a Whopper while driving. At one point, I had to get into the left lane for a left exit.
Traffic was fairly heavy, so I had to squeeze in between two cars. There was plenty of room - at least 3 car lengths, so I wasn't cutting anyone off. I put on my turn signal, checked once more to my left and eased over. The woman behind me sped up as I started over and flashed her lights at me. I continued over and stared at her in my side mirror.
I made a shrugging sort of gesture as if to say, "what, I've got to get over?". About 5 seconds later, I realized that because I was holding onto the Whopper in my left hand (my gesturing hand) that it probably appeared that I was giving her the finger.
I laughed for a good minute about that.
Oh yeah, why was it something good that I did? I didn't actually mean anything bad by the gesture.