Personal commentary: The brown and widow spiders are way, way vilified. The widows do possess extremely potent venom. The brown spiders are much less likely to do you in a bad way, but do have significant venom. The thing is none of them *want* to bite you. I played with black widows for years when I lived in California and it took a couple hundred times of free handling them before I finally got bit. Now I live in Arizona and the two most common spiders around my house are brown spiders (not brown recluse, they are probably desert brown and Arizona brown) and black widows. The same is true for everybody that lives around me.... thousands upon thousands of people just absolutely surrounded by these "dangerous" spiders. I've never heard of anyone getting bit nor have I even read about it in the papers. These "dangerous" spiders and their less toxic to human kin *are* an important control for kissing bugs, blood feeding insects that *do* want to bite humans. Kissing bugs spread terrible, deadly diseases in some parts of their range. And of course the spiders help to control the usual suspects of biting flies, mosquitoes, etc.