Yeah, that'll happen sometimes. Thankfully, we usually find them them before they find us. While I mostly wanted to share some scary photos here, I'll still give you a little information too! I think that you'll learn something.
This GIF that I made should show you why the Brown Recluse is often nicknamed the "fiddleback" spider. There is a marking on the back of the head that resembles a violin, or fiddle. A few other spiders do have similar markings, so it may just be best to avoid any spider that carries around a violin.
One thing that you probably did not know is that the Brown Recluse only has six eyes! Many spiders have eight, but this species only has six. I think that most people get distracted with the dangerous venom that contains hemotoxin and don't worry so much about things like how many eyes they have.
Here are a few other photos that I took last night. Thankfully, they are just scary and the photos themselves are not venomous. Enjoy! ;-)