I have a black widow that loves one of our drain pipes from our gutters. I live in southern AZ so the gutters don't get used much.

Every year I kill one and there is always another one in a few months, so I think I get them after they lay there eggs.
I have a horror story. My 3 year old son wanted to put on his roller skates that had been sitting outside for a month or some since they skate on the back patio. We had been digging around our pond to make it bigger so there were spiders and scorpion everywhere since the pond was there haven. I put on my son's skates and off he goes. I was putting on some of that chainlink plastic strips for privacy, so I continue. About 10 minutes later my son comes walking outside to the back fence where I am at. I see him holding something. My vision isn't the best far away so it looks like he is holding a little stick. He gets about 15 feet from me and my eyes focus in and I see that little "stick" curl upward.

I jumped up and ran to my son and he was holding a scorpion by the end of the tail! Of course I screamed, yelled, and squished the heck out of the scorpion. I asked my son why was he holding that and he said he took it out of his roller skate! My son never got stung once the entire time and that scorpion was in his skate when I put it on him, the entire time he was skating (10 minutes), when he stuck his hand in there to see what was crawling on his foot, and when he carried it to me. Talk about a scare.

Here we have the Arizona bark scorpions which are the most venomous in the US.
http://en.wikipedia.org/wiki/Arizona_bark_scorpion