This was years ago but I remember thinking that was not supposed to happen.
The look on his face must have been priceless. Here I thought these self ejecting bolt handles were an urban legend much like Big Foot.
He was pretty surprised and as I recall, not real happy. I was so "new" to everything at the time it never occurred to me that something like that could happen...
I have not seen it since; but a lot of this is being in the right place at the wrong time.