Sorry, but I'd kill it. Coming from the point of view where I have a dog and a child in our backyard everyday and I have no idea what snakes are harmless and want aren't I would rather err on the side of caution.
I hope it is curled up somewhere tho, or he comes back for dinner! Maybe someone needs to invent collars for them or something XP
I have to agree - I am petrified of snakes... Although I would probably hightail it inside and send someone else to deal with it...
I had to lol at collars and the mental image of someone walking a snake!