I used to sew over pins but broke needles that way. Never had anything fly into my eyes, thank goodness!! But it seemed to me that if I'm breaking needles doing it, it's probably the "wrong" way. So now I pull the pin out just before it goes under the foot. And now that y'all have taught me about the wonders of washable glue I see even less reason to ever "need" to sew over a pin! Next time I'm dealing with anything that fussy, I'll just GLUE it!