Well neither of you know what you are talking about as:
a) It's not kickboxing
b) Jujitsu is not a sport.
c) The jujitsu club I refer to is about 90% self-defense techniques.

This quote sums it up perfectly:
"There are few arts which are as good for practical self defence as Ju Jitsu. Many arts will teach a lot of complicated strikes and high kicks which are impossible to actually use if one was attacked on the street. In Ju Jitsu students are taught defences against a wide variety of realistic situations - defence from rear attacks, holds, weapons, punches, kicks, attacks on the ground and many more. Another reason most people find it useful is the fact that size and strength is not an issue and because of this Ju Jitsu is commonly taught in self defence courses to different people and in particular women."

Roz, no need for the childish put-downs or gory details, I don't know who you are trying to lecture here. I think we all understand the dangers of knives.