I was writing a message post on a discussion thread which had taken me quite a long time. Then I deleted the whole thing by mistake with one touch of the wrong key! I can't face starting again.
It was probably lucky as I had written too much but on the other it was frustrating.
On OPenOffice I can use ctrl. + Z if I am quick to get it all back. But that didn't work in this case. Do any of you know how to undo a mistake like this?