Elderly Lady INJURES KNEE while SHOVELING. Left in TEARS!

We received 12" of snow and my son and I went out looking for driveways to clear. I drove by this house and noticed that there was a little path shoveled besides that driveway but there was still 12" of snow in the driveway. I stopped and knocked on the door and an Elderly Lady answered with a cane and was in tears when she noticed it was me. She mentioned she injured her knee and couldn't finish it and she was so thankful we stopped to help, she ended up giving me a huge hug! This lady was amazing.