<human>: Can you condense the text into a few key points?

My sister and I were on our way back home from a fun ~~date~~ night (since people don't like me using the word date in this situation) of pizza and ice cream when we saw a small yorkie puppy run across the street in front of us. I pulled over so that we could jump out and grab him so he wouldn't get hit and take him to the Humane Society or try to find his owners. When we were pulled over, he got spooked by us and ran into traffic and my poor sister saw the little guy get hit. The car that hit him stopped, then sped off when they saw us running towards him. He was in the middle of the street, his head was still on one side of the line. 

I saw that his eyes were still open, and for his sake I was hoping that the hit had killed him, but I was still on the phone trying to get the number for the humane society so they could come pick him up before more damage was done (I know they do this because just a few months ago I did the same thing when I saw a hawk get hit, who died before they could come pick him up). While I was on the phone with my mom trying to get the number for the Humane society, I had my back turned from the road but could hear a diesel truck approaching, then I heard the most sickening and heart-wrenching crunch I could ever imagine. 

All I did was scream. My mom was trying to ask what happened, but I was bawling too hard to get any words out, then cried the entire way home. I will never forget that sound or experience. Poor little guy. I wish we would have just left him alone and called the humane society so we wouldn't have scared him into the street. :'(
<bot>: pulled off road to save puppy, accidentally scared him into traffic. Saw him get hit, then heard his head get crushed by a truck.