What if. What if both George and Trayvon had been carrying heat?

Trayvon definitely had reason to feel threatened by a big guy who gets out of his car to follow him.

George believed Trayvon was a threat.

What if they both stood their ground?

The chatty juror says that even though George did all the wrong things, like get out of his car and go in pursuit, when he was told not to, in the end, force was reasonable.

Does that mean that if I try to rob a liquor store, in the end when the store owner pulls out a gun, I can claim I was threatened and in fear for my life?

Dodge city is gonna be messy.