Fake aurora caelus event no longer permanently paints space green (#85777)

## About The Pull Request

Closes #84651
Also made sure that if there somehow are multiple kitchen areas chefs
don't yell steamed hams line multiple times

## Changelog
🆑
fix: Fake aurora caelus event no longer permanently paints space green
/🆑

code/modules/events/aurora_caelus.dm

@@ -17,10 +17,12 @@
 	start_when = 21
 	end_when = 80
 
-/datum/round_event/aurora_caelus/announce()
+/datum/round_event/aurora_caelus/announce(fake)
 	priority_announce("[station_name()]: A harmless cloud of ions is approaching your station, and will exhaust their energy battering the hull. Nanotrasen has approved a short break for all employees to relax and observe this very rare event. During this time, starlight will be bright but gentle, shifting between quiet green and blue colors. Any staff who would like to view these lights for themselves may proceed to the area nearest to them with viewing ports to open space. We hope you enjoy the lights.",
 	sound = 'sound/misc/notice2.ogg',
 	sender_override = "Nanotrasen Meteorology Division")
+	if (fake)
+		return
 	for(var/V in GLOB.player_list)
 		var/mob/M = V
 		if((M.client.prefs.read_preference(/datum/preference/toggle/sound_midi)) && is_station_level(M.z))
@@ -31,6 +33,8 @@
 /datum/round_event/aurora_caelus/start()
 	if(!prob(1) && !check_holidays(APRIL_FOOLS))
 		return
+
+	var/list/human_blacklist = list()
 	for(var/area/station/service/kitchen/affected_area in GLOB.areas)
 		var/obj/machinery/oven/roast_ruiner = locate() in affected_area
 		if(roast_ruiner)
@@ -40,10 +44,13 @@
 			message_admins("Aurora Caelus event caused an oven to ignite at [ADMIN_VERBOSEJMP(ruined_roast)].")
 			log_game("Aurora Caelus event caused an oven to ignite at [loc_name(ruined_roast)].")
 			announce_to_ghosts(roast_ruiner)
-		for(var/mob/living/carbon/human/seymour as anything in GLOB.human_list)
-			if(seymour.mind && istype(seymour.mind.assigned_role, /datum/job/cook))
-				seymour.say("My roast is ruined!!!", forced = "ruined roast")
-				seymour.emote("scream")
+			for(var/mob/living/carbon/human/seymour in viewers(roast_ruiner, 7))
+				if (seymour in human_blacklist)
+					continue
+				human_blacklist += seymour
+				if(seymour.mind && istype(seymour.mind.assigned_role, /datum/job/cook))
+					seymour.say("My roast is ruined!!!", forced = "ruined roast")
+					seymour.emote("scream")
 
 /datum/round_event/aurora_caelus/tick()
 	if(activeFor % 8 != 0)