Had the same thing happen to me 2 yrs ago- it knocked my sight completely off. Shook me up a little bit cause it was my first season as a bowhunter. Taught me a valuable lesson tho-- always flex that arrow up by your ear if you hear ANY noise throw it away! I run my fingernail around the arrow too to feel for any cracks- it's a pretty scary experience- a brother of my buddy had the back half of one go into his forearm. Ouch!