Hasn't happened anywhere else with the Castle Doctrine.
If they are really that concerned, they could restrict SWAT teams to doing things that aren't illegal.
“Hasn’t happened anywhere else with the Castle Doctrine.”
It already happened before the current law in Minnesota.
In 2007, a police swat team broke down the door of a family in Minnesota. The father responded with shotgun fire, and stopped the assault.
The Vang family later received a large settlement from the city.
http://newsgroups.derkeiler.com/Archive/Soc/soc.culture.china/2007-12/msg00649.html