Animations: a behavior hears the animations it played itself

Animations.md

@@ -121,7 +121,10 @@ property the later start wins, and a behavior writing it in the same frame write
 so **`On animation finished`** fires in the frame a *Once* animation reaches its end, exactly once,
 with the object it played on as `object`. It is heard by the behaviors of that object's owner
 subtree — the object itself or one placed below the owner next to the behavior — and by a behavior
-without an owner for every object; its *Animation* setting narrows it to one.
+without an owner for every object; its *Animation* setting narrows it to one. A behavior also
+hears every animation it played itself, wherever that object stands: `Play animation` on the
+parent of the owner, or on an object across the scene, is heard by the behavior that asked for it.
+Two behaviors that both played it each hear it once.
 
 **Blend.** `Play animation` has a *blend (s)* port, 0 by default. Above 0, an animation that
 takes over fades in over that many seconds, whatever its frame rate: numbers and colours mix linearly from what the