A friend of mine had a really good technique with parenting. He taught his kids the saying 'Funny once'. Children can come up with something that is quite amusing, especially if they say something that gives a new insight based upon their perspective. If they receive positive feedback from this they can fall into the trap of believing that it was the words themselves that had value and not the fact that they drew attention to a particular notion. Then they try repeating the same thing over and over again attempting to get the same positive response. Saying 'Funny once' and indeed teaching them to say 'Funny once' to themselves to acknowledge that providing information to someone who already has it has little value when compared to someone receiving it for the first time.

Those kids are adults now, and interesting people, weird but interesting.

[Almost all of my friends had weird kids (spectrum genes? Who knew? (Dear reader, Everyone knew)). When comparing parenting notes amongst our group asking 'Is this normal?' the frequent response was 'how would we know?']