Morning Mary,
I'd just like to say I think its a bloody good idea for a thread. Its a great way to discuss the things we have done that might otherwise have ended in a 'That Worst Day' article.
We really don't seem to discuss this kind of thing outside of discussing what went wrong when a fatal accident occurs, and even then half of every thread is devoted to daft argument that we should not speculate on the causes, as if somehow educating each other through debate is mawkish.
Anyway, come on people, own up! Highlighting where you went wrong might just save someone else's pride or even their life.