Ha, I have kept my promise (made to myself). Today, I encountered some people who do not understand the importance of giving credit to the right person. They blissfully convey facts for which they were not responsible (perhaps did not have the experience to think!).
One more good thing, as a trainer it is good when students (Alumni) call you or update you about their where abouts/professional growth. The nice thing is you know you have played a teeny weeny role in this regard.