Had a pipe with a pit viper - No, not your ex wife...

I was outside last night smoking a nice bowl of Key Largo during a tropical thunderstorm and saw this little pit viper coming my way from the palm tree in the terrace. It's a bothrops jararaca, near as I can tell.
I've spent a long time working in the north woods of Canada, and honestly, I'd be a hell of a lot more content if I caught a glimpse of a grizzly bear slinking through my yard than one of these things. At least you can see the shiny claws of a bear. This snake just about made it between my legs before I spluttered hot embers on my lap and leaped to my feet for action.
I swept it into a bucket and continued on with my pipe smoking for awhile until it hit me that perhaps it's mother might still be close by. It was dark, and the shadows darker, so I decided I had enough of the beautiful thunderstorm and retreated indoors... because of the rain, of course.

Seems I have some company here with some of you guys coming across these critters! I'm originally from Canada, but I have a home on the edge of Sao Paulo that I come to. It's in a protected watershed, so there's enough jungle remaining for some to hide out in.
This one was small. I'm pretty certain it's a bothrops jararaca. The band at the eye and the white grub of a tail is a pretty good indicator of a juvenile, apparently. A couple of years ago I found a big one in the garden when I was removing some branches, but it was cold and it just stayed coiled up. I left it alone and never saw it again... perhaps it's breeding.
My new policy will be to send my son through the bushes before I do any more gardening... "Really thrash those plants son! No... over there! That's it... that's a good lad."
I did some work around the Okanagen in B.C. and saw a rattlesnake (Western rattler), which I had no idea was even in Canada. I've seen a few poisonous snakes here in Brazil, along with some spiders that aren't friendly, but usually they're always going away! Out of sight and out of mind is always fine with me, as far as these things are concerned. This little fucker came right up to me and I wonder what it was thinking? Maybe Key Largo is irresistible to them too?!? There was a heavy rain, so I guess maybe it's hiding hole was washed out and it saw I was warm and dry.
I used to work a forestry job in B.C., spending a heap of time using helicopters to go to places no ordinary person would go. I've seen a fair number of grizzly bears, some up close, and even with their beady little eyes and sharp claws, they seem a lot more friendly than a snake to me.
I'm going to take it to the snake institute here in Sao Paulo, get a free pass to the snake zoo and come home with some anti-venom. Apparently you can buy a kit here! Anyway, I want to smoke my pipe in peace, so I figure if I have a shot full of anti-venom, if one of these buggers gets me, I'll just jab it into my arm and keep on puffin'
At least, that's what I figure pipe smokers from days gone by would do. Just grit your teeth man!
Cosmicfolklore- Did it leave a permanent mark? I mean, other than on your very soul?