The snake I saw that one time

 came out of nowhere. I was siting on a pile of hay with a floormat on it. I had my laptop on a bucket. I looked to my left and and saw a snake slithering sideways. The first thought that ran in my head was, "he's moving strangely". He was, or he did, at least I think it was a he. Then the snake went into some grass. I tried to go after it to get a better look, maybe it was a rat snake, or a tree snake, he looked like both.