The only person I know who is a customer there is an OC advocate, so she would have been all but D for sure if the spa hadn't been posted. Not knowing her training or competence I can't speak to D, but it probably wouldn't take much lead being thrown in his direction to persuade him to rethink his plans.
Maybe, maybe not in 2005 I believe a shooter walked in to the Tacoma Mall in Tacoma, Washington and went on a spree, a CPL holder did draw his weapon but was shot before he could fire (I've heard at least 5 conflicting stories of what happened with him, why he was there etc so I won't go into more then the accepted details) I don't think mass shooters actually fear armed citizens, they certainly don't fear police, most either kill themselves or go out in a blaze of glory fighting law enforcement. The fact that the Aurora shooter was arrested unharmed is relatively rare.
Again as I said I totally support someone's right to defend themselves, as much as I respect private property rights. I also don't think having a gun is a magic force field against harm (which I'm not saying you do believe that, so don't take that the wrong way)
I can't think of a mass murder that has NOT happened in a "(legal) gun-free" zone.
Well there was a shooting Alabama in which a man killed members of his family, drove to a gas station, shot the customers there, and then drove down a highway in which he shot another man who attempted to subdue him, then drove to his former employer where he committed suicide after a gun battle with local police in which he injured the police chief. but several of his killings were in a gas station and a road which are not your typical gun free zone, and AL is a right to carry state. Geneva County Massacre
in 1990 after Florida passed their shall issue carry law (Washington had the first shall issue law predating florida by 20 years, don't let anyone use the term "Florida Carry" for shall issue) a man took a .38 revolver and an M-1 carbine to a car dealership (unlikely that it had no gun signs posted) and killed some people. James Pough was his name and this was in Jacksonville.
in 2006 There was the Capitol Hill Massacre in Seattle, this may not strictly qualify as it was at a private residence from what I understand so probably no anti-gun posted signs.
in Florida a pair of Sheriff's deputies were gunned down by a national guardsman who was accused of domestic violence AT A RIFLE RANGE and none of the shooters did anything about it.
gun free zones often make the press as shootings sites, but that's because the shooter probably wants their name in the papers, so killing children at a school is the way to do that, or crowded venues like theatres on opening night of a popular movie because it increases body count. correlation does not always equal causation. I doubt any of these killers ever consider the legal status of guns on the intended property. Gun bans and shootings at those properties may correlate, but they're both caused by a third factor... a large crowd of gathered people in a prominent place.
That's one of the main reasons I think that no gov't building or property should be allowed to prohibit the peaceful exercise of civil rights. There is no alternative place to pay your taxes or go to court.
But they're also guarded by armed personnel in the building and have screening procedures to detect weapons before someone enters. (usually)
Only the places that don't allow people to act in their own self-defense.
So I know WI law eliminates liability for allowing CCW. but why should it? mass shootings are rare enough that it's not reasonable to forsee them as a constant threat the requires allowing people to carry firearms. and in reality, a minority of businesses actually do ban guns. walk into virtually any business in Kitsap county with your OC piece and you'll probably be allowed to do business, in fact when I worked at a grocery store i was specifically told in training that we allow legal OC and CC.
now if massacres and gun battles happened daily that might be a different concern, but I've been alive for 20 years now, yet to be involved in a mass shooting incident. not that I'm Naive and refuse to accept it can happen, but I also understand that statistically it doesn't happen often enough to where it justifies lopping liability unto private businesses.
One more, if you see this as a rant against legal carry of a firearm, just know that I am not in anyway opposed to that, just also supportive of private property rights.