In the streaming drops which funneled from the curled leaf, tadpole after tadpole hurtled downward and splashed headlong into the water; their parents and the rain and gravitation had performed their part, and from now on fate lay with the super-tads themselves-except when a passing naturalist brought new complications, new demands of Karma, as strange and unpredictable as if from another planet or universe.
"Edge of the Jungle"
William Beebe
People like Nikky Gratham and Tobbin of Nergal and the Everrards of Hoth get nervous around unpredictable dangers, and when they get nervous they get trigger-happy.
"Space Viking"
Henry Beam Piper
It had its alternations of humming content with a good deal of whimsical bouncing and buzzing and the most unpredictable flights.
"We Girls: A Home Story"
Mrs. A. D. T. Whitney