(Takes a deep breath and attempts to supress any kind of pride)
To Pik:
Regarding 6, thanks I'd defintiely do what I could as far as fighting, if that means being an appetizer, so be it.

The lotion bottles thing was sarcasim, I thought it was pretty funny, I guess I worded it incorrectly

I'm about 5' 8" and I only weigh about 145. Not sure how that's relevent though.
If this thread was for normal street defence I would have given much different answers (see the Martial arts thread in OT, when in doubt 'stomp the groin'), as the title however indicates, it is for zombies or near such. So I answered accordingly.
It's very easy to get around behind someone. In sparring and especially real fights with commited attackers, after the first haymaker is thrown, all you have to do is 'bob' once and you are baiscally behind them.
According to the internet which is not always reliable but can be used to carry on well known facts, the knee is relatively easy to break (or at least damage) from the side as bones go.
Being almost 16 and weighing 145, I would think a judge with common sence (not a gurantee) might think moderately acceptable to use a weapon against a pcp junkie. Espicially when a much larger police officer had just had to use a gun.
Allright, I just timed myself.

From my hands up, I can take my knife out and have a good grip in about a second. With my thumb in my pocket like it normally is, I can access my knife in a little over a quater second. In every case I've read where a knife is pulled in self defence the attacker runs away at full speed.
I'm pretty smooth with words when I need to be and I've deescaleted a few minor fights before, I'm pretty sure I could do it again and that would
definitely be ideal. Doens't generally work with zombies from what I've heard though (ask the faceless homeless guy from florida). kind of a 'Hope for the the best, Prepare for the worst' philosphy.