What is something you told yourself "I would," but when it came time, you wouldn't?

I have some hilarious conversations with some people. I'm pretty open minded, because at the end of the day, your life is your life; my life is my life.

I'm sure you've all played around with hypothetical situations and the whole point of it was to get your friend to say they would from an initial "wouldn't" response.

As we've aged, what were some actual outcomes of thing you thought you would but couldn't or thought you wouldn't but did.