Scorpions like to hide in dark places, that's where they like to hang out. There is a product called STUFFIT at home depot that you shove into your home's weep holes. It will not block the weep hole from weeping as it is made of mesh. Look for their entry points, and remember they're just looking for somewhere to hide. The smaller the scorpion, the harder the sting! I worked for Terminix for a few years doing commercial sales. Best way to deal with it is by not using pesticides. Alot of places don't like to spray anything around animals ESPECIALLY FISH, as they easily succumb to pesticides