For example, the wake left by motorboat is a complex superposition of wave motions, none of which are explicitly contained or tokened on the surface of the water.
Nevertheless, nonclassical constituent waves have numerous causal effects, including
“setting a boy into bobbing in a certain way, knocking down a skier, think contributing to the destruction of a sandcastle” 
Terence Horgan and John Tienson (1992) p.212.