What would I do? I'd Run. I would run far away.
If I was legitimately scared of a person who was staring at me, and then chasing me. I would run away. I would rely on my speed and endurance to outdistance my peruser, and take me out of harm's way.
In Trayvon Martin's case, he had exactly 4 minutes and 7 seconds of time in which to run away. We know this. This is what the evidence shows. That is the amount of time which elapsed between Zimmerman saying "he's running", and the start of the direct confrontation between Zimmerman and Martin.
4 minutes and 7 seconds.
I am a 47 year-old man, and if you gave me 4 minutes and 7 seconds, I could easily put a half a mile between me, and the person staring at me in your rhetorical situation. Half a mile away. My stalker would have trouble shooting me with a sniper rifle at that distance. A point-blank shot, such as Martin suffered, would not be possible.
There is only one conceivable reason why I would would be back at just about the same exact spot from which I had started running, being shot point blank, if I had been granted 4 minutes and 7 seconds of running time, and that reason is because I wasn't scared, and that's exactly where I wanted to be. Back where I started, confronting my stalker.
First, I have to call BS on the idea that there is "only one conceivable reason" why Martin didn't go home. There are plenty of plausible reasons, just for example:
(1) It was reported to have been incredibly dark that night and Martin had no flashlight; Zimmerman himself, despite being on the phone with police and having tactical flashlight in hand and loaded gun on his hip, claims that it was so dark behind the buildings that he was afraid or reluctant to walk back to his truck in the dark. It's certainly conceivable that it was too dark for Martin to continue safely along the sidewalk without sufficient lighting or a flashlight and that forced him to turn back or stop and wait.
(2) It's certainly conceivable that Martin was reluctant to lead a stranger who was clearly following him, directly back to his house, especially considering there were no adults home at the time.
(3) It's certainly conceivable that Zimmerman was lying about the timeline and/or his exact location at points in time, which makes it conceivable that your 4 minutes and 7 seconds is not really accurate. 4
(4) Testimony from the friend on the phone reported that Martin said he thought he had lost Zimmerman after running onto the sidewalk, and therefore he started walking slowly again and continuing his conversation with her. As such, it's certainly conceivable that Martin was just meandering around talking to his friend, not expecting that Zimmerman would actually get out of his truck and follow him onto the sidewalk.
I could go on and on and on but hopefully you get the point that there are certainly more conceivable reasons that you have presented.
Second, let's assume the 4 minutes and 7 seconds is accurate and that Zimmerman was telling the truth. Well then surely you apply the same reasoning to Zimmerman's actions as you do to Martin's, right? Unless you are applying a blatant double-standard, that is. Surely you have to conclude that there is only one conceivable reason why Zimmerman failed to return to his truck in that same 4 minutes and 7 seconds, and instead ended up killing Martin on the sidewalk leading to Martin's destination - and the reason is because that's exactly where Zimmerman wanted to be, right? In which case he lied to the police about his location, motives and intentions, right?
In short, if you cast blame or criticism on Martin for not running straight home despite having the time to do so, then surely that an equal measure of blame or criticism must apply also to Zimmerman considering that he had plenty of time to return to his truck but failed to do so. Right?