Experts say August is the mating season for hobo spiders, which means you'll most likely find them in pairs, and they may be more aggressive.
The venom from a hobo spider can eat your flesh, and may cause a staph infection, not to mention considerable pain. Which is why experts say not to touch them, but kill them right away and call a professional if there is an infestation.
Spraying for hobo spiders can help stop them from getting in your home, but the spraying isn't foolproof. The best thing to do if they're already indoors, is place spider traps around your walls, and keep the house clean.