I had my share of fights in high school with limited success.I joined the military,took up boxing and became a bit of a gym rat.It made it much easier to not get in a fight.Most guys are blind flailing when the fight happens(hockey players excluded).I will tell you that if you think a kick to the nards or a gouge to the eye will stop an expierienced fighter you are mistaken.You will prolly not connect and you will get your ass beat.Thankfully most guys with training are not gonna let you make that mistake.Its been a long time since I've been in a position that I had to defend myself or someone I cared about,but kicking and gouging eyes and nuts are not a real good idea.Keeping you head and picking your spots work much better.
Joe