It was an emerald tree boa. this thread looks like a joke. it probably didn't have horns. venomous is banned at the mississauga expo's, so it was definetly not any sort of viper. the only snake i know of that has horn looking things is cerastes. eyelash vipers have a few scales that stick up over the eye that gives it the name "eyelash" viper. side winders have a scale that stands up over they eye giving the apearience of horns.
your snake was more than likely the emerald tree boa. red, arboreal, wrapped around the branch.
Jordan David M.
"I Don't Get Mad, I Get Even!"