People are these are truly uncommon. I remembered someone I had to go all the way out for you even to even borrow money for, because they said they had accomodation issues, and can you believe that after rendering them that help it's been close to two years and they've never even called to say "oh, I saw the help you rendered me, thank you" they just moved on like they were entitled to it.
It's probably why I don't expect a lot. The world is full of unappreciative people and when people go all the way to appreciate, we tend to see it as a surprise.
Just like your cousin, sometimes, we don't even remember things we do, it's just that the recipients holds it to heart.