Haven't watched Titanic. Or Gone With The Wind.
I have never cheated in a game. Even playing monopoly, as a child, by myself, I never cheated.
I never really learned to ride a bike. As a kid, my mum refused to get me one, because she thought I'd kill myself (and she was probably right). Tried to ride my cousin's bike when he left it with me when he travelled overseas - I fell off outside my front gate. Bought a new mountain bike about 5 years ago - threw it over the back fence into the alley after a week of frustrated attempts.
I have never followed a recipe. I love cooking, and anyone who knows me well knows that I'm a pretty good cook and have a very diverse repertoire. But I can't bring myself to follow a recipe - feels like 'colouring-by-numbers'. Or ...cheating.
I'm sure there's more, since I'm so OCD.