Not sure about 'Failed ejections' - but after too much beer one night and in the compnay of a very tasty little WRAF-lette, I do admit to a 'Failed e*ection'.....
There was a tale of VC10 flight testing with Trubby Trubshaw who thought the thing was about to spin "Bale out, bale out" he called. The recovered.... "COME BACK, COME BACK", he called.... Fortunately, they did!