The following snippet of a larger conversation with my 6-year-old son D- is twofold evidence that he is undoubtedly my son:
Me (advising him externally and myself internally): ...Whenever something seems like it's going to be hard, you just quit before you even start.
D-: No, I don't! I START things, and when it seems hard, THEN I quit.
You may enjoy my previous D- conversations, (3YO daughter) M- conversations, and (wife) J- conversations.