the problem is that people are idealists, and when they've got their good intentions, they cant always see the way to how something can be abused ... I totally understand what they try to do with SYG laws, over here a fella attacked and disarmed an intruder into his home who later died as a result of the altercation and the homeowner was charged with murder...they later dropped it but it caused such an uproar....a SYG law (not that you can have guns here) would prevent that sort of stupidity from happening....
....but then you always get the jerks that ruin it for everyone, who want to twist the law on a technicality such as in this case IMO (IMO trayvon was the one standing HIS ground)
eta link to case I just mentioned, this isnt the most recent article but tells some facts of the case http://www.guardian.co.uk/uk/2011/sep/19/homeowner-bail-alleged-burglar-stabbed
ETA again to add, sorry it's insomnia week I should do it right the first timehttp://www.guardian.co.uk/uk/2011/oct/07/householder-cleared-fatal-stabbing-intruder?INTCMP=SRCH
I think that the law should certainly support homeowners who have to kill someone who is breaking into their home. They shouldn't have to retreat in their own home and anyone breaking in is definitely up to no good. I thought Sarah McKinley was justified in shooting the man who was breaking into her home holding a knife when the police did not arrive in time. Burglars should know that they are risking their lives when they commit these felonies. But it isn't right for a watch volunteer or a concerned neighbor to be taking a gun to confront a stranger and it isn't right for a man to go to a basketball court to yell at a teenager with a gun in his pocket. These kinds of situations are very likely to end badly.