I had a monstrous yellow lab in the past. He loved to play dodge with me. One time, he ran directly into my legs and planted me face down. Despite all the action and excitement, he immediately came over to me very gently and licked me and waited for me to get up. He had a very guilty look on his face.
My big, "rescue" Golden Retriever did that to my husband when he was brought to our house by his foster mom on a visit to see if we might adopt him. He flushed a cat out from under the deck and started chasing the cat and knocked over my husband in the process. He stopped dead in his tracks, looking shocked and rather sheepish. He's been with us ever since.