Closest I ever came in 35 years taildragging to scratching an aeroplane (actually, writing off a lovely L4 Cub and possibly us as well) was when I gave the landing to a multi-thousand hour professional pilot who had no significant tailwheel experience.
Suffice to say that to this day I don't know how that wing tip didn't dig into the runway and cartwheel us as I grabbed it back - later than I should have done.
I sure learned a lot about flying from that.