--- scripts/restaurant/restaurant.gd
+++ scripts/restaurant/restaurant.gd
@@ -47,6 +47,8 @@
 # sienne, en secondes franches. Cette valeur ne sert plus qu'a repondre quand on
 # la demande sans client sous la main.
 const EATING_SECONDS := 8.0
+# Fixed-meal guests wait briefly when their order cannot be supplied.
+const UNAVAILABLE_FIXED_MEAL_WAIT_RATIO := 0.25
 # Finished meals are plated directly on the stove.
 const PLATING_OFFSET := Vector2.ZERO
 # Une table est un tabouret: une seule place, un seul client. Les emplacements
@@ -2476,6 +2478,13 @@
 			ready += 1
 	return ready
 
+# Reusable by every profile with a fixed recipe, independent of its quest.
+func order_supply_patience_ratio(guest: Customer) -> float:
+	var fixed := str(DataCatalog.CUSTOMER_PROFILES.get(guest.profile_id, {}).get("fixed_recipe", ""))
+	if fixed.is_empty() or fixed != guest.requested_recipe or _recipe_is_available(fixed):
+		return 1.0
+	return UNAVAILABLE_FIXED_MEAL_WAIT_RATIO
+
 func _recipe_is_available(recipe_id: String) -> bool:
 	return GameState.can_cook(recipe_id) or _servings_ready(recipe_id) > 0
 
@@ -4326,11 +4335,13 @@
 		# produisible, et ce contrôle passe à chaque changement de stock.
 		if not current_customer.has_live_order():
 			continue
+		var fixed := str(DataCatalog.CUSTOMER_PROFILES.get(current_customer.profile_id, {}).get("fixed_recipe", ""))
+		if fixed == current_customer.requested_recipe:
+			current_customer.refresh_order_patience()
+			continue
 		if _recipe_is_available(current_customer.requested_recipe):
 			continue
 		# Il est venu pour ce plat-là: il ne change pas d'avis faute de stock.
-		if str(DataCatalog.CUSTOMER_PROFILES.get(current_customer.profile_id, {}).get("fixed_recipe", "")) == current_customer.requested_recipe:
-			continue
 		var alternative := _choose_available_recipe(current_customer)
 		if alternative.is_empty():
 			GameState.toast_from(self, Loc.ui("ui.restaurant.customer_left_last_meal") % current_customer.display_name)