Mozambique Spitting Cobra

Wikipedia: This snake is a nervous and highly strung snake. When confronted at close quarters this snake can rear up to as much as two-thirds of its length, spread its long narrow hood and will readily "spit" in defense, usually from a reared-up position. By doing this the venom can be ejected at a distance of 2-3 meters (5½ - 8¼ feet), with remarkable accuracy.