It's not just snakes...its 'exotic' animals in general these days...
Heck, I still get hackled for owning rats. Apparently they're still the plague on legs to some... :\
Last year a baby got all of his fingers except for his thumbs chewed off by a baby ferret supposedly. Now many people are classifying ferrets as a dangerous animal due to this single incident... (first ferret incident in years)
Long story short, the baby was left out in the middle of the night with a free roaming ferret while the parents were "sleeping". Good job parents. Good job keeping your animal and baby secure. (guess they can't hear a crying baby either??)
Like all of the nasty animal stories we hear, it IS THE FAULT OF HUMANS that animals suffer and get blamed.
And cats and dogs are underestimated too much. My friend has a cat who is down right vicious. That cat will snap just like that and turn totally wild. He will (and has) go for your jugular if you're not alert.