I don't want to kick you when your down, but.............
How in God's name did you miss that?
I dropped a screw into my passenger's side header once. I thought it hit the floor and rolled away. I never found it. I assume it went out the tailpipe along with all the blades on my turbine housing. Funny thing is I actually heard the pinging tinkle of pieces of metal tumbling past my right ear and out the tail pipe.
Been there, done that.