It's happened a few times. A friend or a colleague has made a big shift or change in their lives as the result of something I've said or done. My reaction was usually "oh my God, don't follow me, I haven't a clue what I'm doing!" I didn't want the responsibility. Now I see that all I did was trigger something that enabled that person to do what they really wanted to do anyway. So now I say "thank you". We all need our catalysts.