I have found that going out in full tactical gear with an AR on my back and camo face paint pretty much gets me any gas pump I want and the people at Wal-Mart are always so nice, they let me skip right to the front of the lines. This was especially helpful when Christmas shopping on black Friday.
Seriously what has the world come to when being first to use a gas pump involves a fist fight much less gun play.
Maybe the self defense claim comes because he lost the fight he started. I can hear the testimony now...Yeah ah it is like this. I wanted the pump but he tried to get it first. I figured I could kick his butt so I punched him a couple times. All of a sudden he started punching me back...and it hurt. He hits alot harder than my wife and pretty much beat me like a drum. I was in fear for my life so I shot his car.
Jury now raises their hands and say Judge we don't need to deliberate he is guilty lets all go home early.