diff --git a/actor.ts b/actor.ts
index e03eb07..a141839 100644
--- a/actor.ts
+++ b/actor.ts
@@ -110,15 +110,13 @@ export class Turn {
     }
 
     quit(): void {
-        const actor = this._ensureActor("quit");
-        this.localActions.push(t => actor.terminateWith(t, { ok: true }));
+        this.localActions.push(t => this._ensureActor("quit").terminateWith(t, { ok: true }));
     }
 
     assert(location: Ref<Entity>, assertion: Assertion): Handle {
-        this._ensureActor("assert");
         const h = nextHandle++;
         this.enqueue(location.actor, t => {
-            this.actor!.outbound.set(h, [location, assertion]);
+            this._ensureActor("assert").outbound.set(h, [location, assertion]);
             location.target[assert]?.(t, assertion, h);
         });
         return h;
@@ -161,9 +159,7 @@ export class Turn {
     }
 
     complete(): void {
-        if (this.completed) {
-            throw new Error("Reuse of completed Turn!");
-        }
+        if (this.completed) throw new Error("Reuse of completed Turn!");
         this.completed = true;
         this.queues.forEach((queue, actor) =>
             actor.execute(() => queue.forEach(f => Turn.for(actor, f))));