To wander off topic a bit....I have a garter snake story.
Many years ago I was fishing the Wind River (long before it became the nitemare it is today) in July for Steelhead and Late Springers. I was fishing the lower end of a riffle when I looked upstream and saw a garter snake swimming downriver with the current. I thought it must have fallen in. As I watched it, it kept swimming towards me. I was wearing hip boots and was in about knee-deep water. It swam within two feet of me and as it got just past me it dove under the water. I thought it had sunk and was considering grabbing it and taking it to shore. It was crawling between the baseball-sized cobble on the bottom when I saw a puff of sand come out of the downriver side of one of the cobbles. The snake backed out and came to the surface right in front of me with a sculpin in its mouth. The fish was trying to shake free, but that snake had him for good. It then swam to the shore and up on the beach somewhere to eat his lunch. I didn't follow, but that was the coolest thing to see happen right at my feet.