I found myself approaching with uneasiness and I was startled out of my concentration by the sound of malicious hissing. Waddling toward me with remarkable speed were two huge white geese, their heads thrust forward, mouths open like snakes with their tongues protruding, emitting a terrifying sound. I gave a low involuntary cry and began to backtrack toward my car, afraid to take my eyes off them. They covered the ground between us at a pace that forced me into a run. I barely reached my car before they caught up with me. I wrenched the door open and slammed it again with a panic I hadn’t felt in years. I locked both doors, half expecting the viperous birds to batter at my windows until they gave way. For a moment they balanced, half lifted, wings flapping, black eyes bright with ill-will, their hissing faces even with mine. And then they lost interest and waddled off, honking and hissing, pecking savagely at the grass. Until that moment, it had never even occurred to me to include crazed geese among my fears, but they had suddenly shot straight to the top of the list along with worms and water bugs.
LMAO! From personal, close exprerience, yeah, they are terrifying. It's amazing how something that you can kick to kingdom come can cause so much dread with a hiss