Well, I suppose so, but statistically the chances of that are so small it seems ridiculous to me.
It is entirely within Costco's rights to ban guns, or smoking, or any other activity within their stores. Customers can choose to patronize them or not in response to their policy.
It sounds as if this individual has made his choice, as is his right.
Just curious......do you have a fire exstinquisher or smoke detector in your home? Even thought statistically the chancees of a fire are so small.
Gary Kleck estimates 2,000,000 defensive uses of a firearm each year. 1,000 of these kill the attacker. I have no number for the woundings. Most of them are simple displays. That means 2,000,000 attacks, or if we halve the number, there are 1,000,000 times a violent provocation ended when the potential victim displayed a firearm. This is an annual figure,
1,000,000 out of 300,000,000 means 1 in 300 odds of you being the victim. Those are pretty long odds, but considering the size of the sample, the number of trials gaurantees that somebody will be next.