When they try to hit/kill you for no reason?

Always in self defense. Equal force to stop the aggressor, never use excessive force.

in 2012 a docter made a mistake during an operation on my father, my father died, I punched that dokter. I got not allowed in the hospital for two years and had to write a formal aplogy, emotion, self defense and protecting your family, instict and emotion can sometimes take control even in situations it isnt justified in

I'm not saying relationships between men and woman are all sexual. I have lots of female friends, and my girlfriend has a lot of male friends. I'm just saying "to get a hold of your kid" is not really a great answer. If your kid is old enough to be out with friends (and I take it that the friend is not a mutual family friend as would the case be for a 5 or under child) it is a good idea for them to have a phone. That's just good parenting. 

I dotn quite agree with that.Sometimes there is no need, since you would have already the parents friend phone(both the dad and mom), so its not completely necessary.(It was like this my whole childhood).And I mean, usually when you are little, the parents end up knowing each others and may end up being friends, so thats and extra layer of safety.Plus sometimes the family dont have that extra cash to buy a phone for the kid.Its not that cheap to buy a decent phone for someone who is not *really* going to use it.

Male: in self defense of me or someone I care about.

Female: I wouldn't hit a female but I would bitch slap one if she hit me.

If someone stole my Funyuns.

Your expecting your child to always be WITH the parents you got the number too? I was usually out bowling, or at the skating rink, or the arcade, at our local rec center playing roller (in off season) or ice hockey, ect. When I got around my friends and out of the house the LAST thing I wanted to do is be around someone elses parents. 

Well, both arguments have its pros and cons.I just personally dont see the completely need for a phone(for your kid), as long as you have the friends parents phone and you know that they are responsible.But I can understand your point of view.

haha it's really not a big deal.
Has happened to me before too.
If someone said something, I'd just laugh