I think bae is the only one who answered this honestly enough.
Maybe you would be so cool, calling 911 and all Alan, but I think you probably would more likely turn, say 'Hey, WTF are you doing? Why are you following me?'
Remember, it's night, which means it's dark, and you are minding your own business when this happens. You are going to be surprised, then frightened, then angry. I do believe you would confront the guy. You may not come out swinging, but it's dark, the guy is itching to 'be a cop' or whatever, you really don't know, maybe he's going to rob you, or beat you up, and things get out of hand pretty quick in tense situations.

I ask this question because, most people don't ask themselves this, or answer it honestly. Most women, I think, would run (home or to a neighbors because that is our training from day one, really) and most men, who are fairly sure of themselves (and all 17 year old young men are sure of themselves) would turn and say something like the above. Most would not run away. Or stop to call 911 ( "here, hold on a moment while I ring up 911...that's a good stalker") or identify themselves (why should they, it's their neighborhood, and really, who 'identifies' themselves to would-be robbers?)
I do believe 9 out of 10 men would turn and confront, just like I assume Travon Martin did. Zimmerman confronted, even though he was told not to and actually pursued to confront, with the added emboldening 'id' of a gun.

We do know many facts here. The kid was simply walking home from a store. He did not rob the store, he was not peeking in windows, or smashing lawn ornaments etc..Just walking home. He did not confront, or threaten Zimmerman, or even know he was there until Zimmerman confronted him.
Zimmerman, a cop wanna-be, self appointed neighborhood watch person with a gun (police tell neighborhood watch people to never carry a gun) sees the kid and calls the police. They tell him directly to not follow the kid. He ignores the cops and gets out of this car to follow, then confronts. I suspect the kid realized he was being followed at some point and turned to confront his stalker. Maybe Zimmerman already had his gun drawn, he certainly had the safety off. If the kid did throw a punch then that was his miscalculation, and probably more a symptom of being 17. Wasn't he, in fact, standing his ground? Somebody stalked him, threatened him, and he stood his ground. Isn't this kind of situation, in fact, what stand your ground is for? You are threatened and you use force to stop the threat? Zimmerman wasn't threatened until he forced himself into the situation.
Zimmerman WAS the threat!
Unfortunately he also had the gun. I don't think Stand Your Ground was designed to absolve the winner of a fist fight when it turns fatal. Zimmerman started this fight by simply being there with a gun. He was LOOKING for a fight. Travon Martin wasn't. But he was thrust into one by Zimmermans actions, just as bae, honestly, would be thrust into a confrontation by his stalker.

I don't believe Zimmerman set out that day to kill someone, but he did. It happened, and the person he killed was an innocent kid walking home from the store. He should pay the price.

Frankly I don't understand why the right (on Fox it's practically hysterical) is so adamant about defending this guy. It's either a gun thing or a race thing.