Snakes are a fact of life in my part of Florida. We had a "harmless" Oak Snake that hung out on my wife's bird feeder just outside our office window. I took him off the feeder three times, taking him further and further from the house each time. He was reasonably passive when being caught. The fourth time, both the snake and I had enough. He did not want to be caught and he got nasty. The last time I bagged him up, and drove him five miles to let him go. That was the charm.
About 20 years ago, I had an incident with a Copperhead, that sent me to the hospital for five days. Being bitten was no more painful than a bee sting, but within an hours it was a study in agony, and it hurt through level III morphine. Now days I just shoot all of the pit vipers that turn up in the yard. I don't like killing them, but 'ya gots to do what 'ya gots to do. As long as they stay in the woods I don't harass them.