In stark contrast, we have the eastern diamond back rattler, a species which is known for being agressive, can grow to 8' long, and is the most venemous snake in north america. It is also the heaviest by weight, and the Longest rattlesnake variety. They have been known to climb as high as 30' off the ground, and on occassion, attack from above.
Even WITH anti-venom, they have a 30% mortality rate.
We also have Moccasins, a type of viper, semi-aquatic, and easily mistaken by some for its harmless doppleganger the black snake. Specimens have been captured that reached 74 inches in length (IE easily as large or larger than many men). The Moccasin produces more (and more potent) venom than the copperhead. while not as deadly as a rattlesnake, it still has had its share of victims (usually, the old, or young, or alergic). I personally know of someone who died from encountering a nest of small moccasins in a lake. jumped off the boat into their midst, and was attacked in defense. He was bitten over 100 times. His friends who were with him used the anchor rope to snag him by the leg, and drag him back to shore. He was dead within hours. Unfortunately this is not completely rare, the guy that takes care of my parents horses feet had a similar experience as a teen.
Any way, I don't have a phobia. But when it comes to black snakes, or rattlesnakes, or anything else that I know to be poisonous, (and considering I live on the water), I kill indescriminately.
The only snake I've seen and ignore are red ratsnakes. But I seldom see those. Its much more likely I'll encounter a pygmy, or eastern diamondback rattlesnake.