Youthful follies II: What mistake do you wish you had made when you had the chance?

“The follies which a man regrets the most in his life are those which he didn’t commit when he had the opportunity.”
—Helen Rowland

Now that you are older and wiser, you wouldn’t do it. But ah, wouldn’t it make a great memory now! Do you ever wish you had gone ahead and done it? What was it?

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Companion question here.