When they're still young, children tend to see the world without preconceptions,  which can give them a unique perspective. And sometimes they see things that adults should be glad that they can't...
I don't think I have, no.
لا أظنّني رأيت، لا
Nein, denke nicht.
Je ne crois pas.
No, credo di no.
Acho que não.
Наверное, нет.