use static for shared member vars

code/modules/mob/dead/observer/observer.dm

@@ -32,7 +32,7 @@
 
 	var/is_manifest = 0 //If set to 1, the ghost is able to whisper. Usually only set if a cultist drags them through the veil.
 	var/ghost_sprite = null
-	var/global/list/possible_ghost_sprites = list(
+	var/static/list/possible_ghost_sprites = list(
 		"Clear" = "blank",
 		"Green Blob" = "otherthing",
 		"Bland" = "ghost",

code/modules/mob/living/bot/mulebot.dm

@@ -34,7 +34,7 @@
 	var/turf/home
 	var/homeName
 
-	var/global/amount = 0
+	var/static/amount = 0
 
 /mob/living/bot/mulebot/Initialize()
 	. = ..()

code/modules/mob/living/silicon/pai/pai.dm

@@ -26,7 +26,7 @@
 	var/obj/item/communicator/integrated/communicator	// Our integrated communicator.
 
 	var/chassis = "pai-repairbot"   // A record of your chosen chassis.
-	var/global/list/possible_chassis = list(
+	var/static/list/possible_chassis = list(
 		"Drone" = "pai-repairbot",
 		"Cat" = "pai-cat",
 		"Mouse" = "pai-mouse",
@@ -41,7 +41,7 @@
 		"Rabbit" = "pai-rabbit",
 		)
 
-	var/global/list/possible_say_verbs = list(
+	var/static/list/possible_say_verbs = list(
 		"Robotic" = list("states","declares","queries"),
 		"Natural" = list("says","yells","asks"),
 		"Beep" = list("beeps","beeps loudly","boops"),

code/modules/mob/living/simple_mob/subtypes/animal/passive/fish.dm

@@ -25,7 +25,7 @@
 	meat_type = /obj/item/reagent_containers/food/snacks/carpmeat/fish
 
 	// By default they can be in any water turf.  Subtypes might restrict to deep/shallow etc
-	var/global/list/suitable_turf_types =  list(
+	var/static/list/suitable_turf_types =  list(
 		/turf/simulated/floor/beach/water,
 		/turf/simulated/floor/beach/coastline,
 		/turf/simulated/floor/holofloor/beach/water,