SNAKE!!!

I was sitting in my favorite chair when Jim walked by and said, "DON'T MOVE". I looked at him with a WTF look on my face; he pointed at a spot about 18 inches from my feet. This fellow was sitting on top of my shopping bags with his tongue flickering. The interwebz says it is a copperhead. I am FREAKED. How did it get in my house??? How did I escape snakebite??? How do I sleep in my house now??? GAH!!!