How sad for the garter snake.They stink a lawn mower deck too when you track them down and drop the deck down to zero. "Thump, thupp sspprrtt" and they be no more. I went into the basement in an old farmhouse I owned and a huge garter snake was laying on a foundation ledge. Couldn't find a tool to off him quick but I spotted a can of starting fluid and gave it a good dose. It descended into Hell after a few seconds of writhing.
My kids played with them when we came back to the farmhouse.