What’s the worst thing you’ve ever written with a brush?

Not the shaky character that looked like a drunk crow, not even the one that bled through the paper. It was the scroll I made for my sister’s wedding—perfect calligraphy, flawless ink, but I used a stick I’d been saving for years, one that smelled like old temples and regret. She loved it. I haven’t touched that stick since. What’s the worst thing you’ve ever made that someone actually praised?