If it's a black, rat, garter or otherwise harmless snake - no, wouldn't kill it under normal circumstances

If it's poisonous then I'd kill it if it was too close to the house or barn, otherwise I wouldn't go out of my way to kill one.

But it is only a snake for cryin' out loud, if you want to kill it, kill it, what's the big deal.

I'm waiting for the 'Would you kill a mouse, spider, etc.?'thread