This one would inspire hope that every "cracker", as Martin called Zimmerman, doesn't just get beaten so they bleed, but ends up dead.
That must be the reasoning.

At 7:11:33, GZ says to the operator that TM "is running". He talked about TM running from the T to the south. Basically, that's where Martin would go in order to reach his house. Rachel Jeantel who was on the phone with TM also confirmed that he ran.
GZ's call ended at 7:13:41.

The confrontation began at the T at 7:15 to 7:16 according to phone call records and witness testimonies. Rachel Jeantel's second call connected at 7:16. On two occasions, she testified about hearing Trayvon Martin say "what are you doing around here?" and "what are you following me for?. It could have been one or the other, if not something else. What matters about it is that it can tell us when the confrontation began.
Jenna Lauer's call with cries for help connected at 7:16:11, also confirming that.

This means that TM had 4 minutes to reach his house from when he ran to when he confronted GZ. Why did he not or why did he do it and return? He had more than enough time, even if he just walked slowly.
It's not even like he had reasons to be afraid of George Zimmerman finding out the location of his house because GZ had a flashlight on, so TM would always know how far he was from GZ.

As for GZ telling the operator that he'd like to meet the police at the clubhouse, it was when GZ was at the clubhouse himself. The event wasn't static, so the operator kept talking to GZ, TM kept moving and the operator was asking about his directions. After GZ parked his car facing the T from the street (near Jenna Lauer's front entrance), he clearly had changed his location, so he said that he'd want the police to meet him there. There's nothing inconsistent or strange here. I'm sure any reasonable person would rather keep updating the police on their location if they were moving.

It's supported by the evidence. Zimmerman's keychain with a small flashlight that was on were found at the T intersection. Judging by the phone call records, it was 4 minutes between George Zimmerman reporting that Trayvon Martin ran in the direction shown on the map and Trayvon Martin coming back to confront Zimmerman. And I believe Rachel Jeantel (also known as Dee-Dee, Diamond) who was on the phone with Trayvon Martin that night later testified about Trayvon being in the backyard at some point. All the witnesses but one reported that the confrontation began at the T intersection. George Zimmerman's statements are also consistent with these pieces of evidence.

Slackware was my frist distro. Then I've looked at Fedora, Mandriva, Kubuntu, Ubuntu and a bunch of others without ever using them on a regular basis. Only Slackware has been my main OS for a while. If I weren't that much of a PC gamer I'd still use Slackware rather than Windows. This has been my way of thinking for a couple of years now. What's interesting, though, is that Windows 8 is changing how I see Windows. I'm starting to think that even if I stop playing PC games I'll not go back to Linux. It has been a lot better as a system during the Windows XP era and before that but now it seems like Windows has grown up.

I believe I'd do the same.

The main reason I use Windows is gaming. I spend hours a day playing games online via Steam. I bet Wine or anything like it still won't let you run ANY game on Linux. That is despite the fact that I'm a fan of Slackware and Linux in general.