Fixing several minor runtimes.

code/modules/mob/living/carbon/carbon.dm

@@ -585,7 +585,7 @@
 		if(!isnull(E.lighting_alpha))
 			lighting_alpha = E.lighting_alpha
 
-	if(client.eye != src)
+	if(client.eye && client.eye != src)
 		var/atom/A = client.eye
 		if(A.update_remote_sight(src)) //returns 1 if we override all other sight updates.
 			return

code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm

@@ -649,7 +649,7 @@ Difficulty: Very Hard
 			L.heal_overall_damage(heal_power, heal_power)
 			new /obj/effect/temp_visual/heal(get_turf(target), "#80F5FF")
 
-/mob/living/simple_animal/hostile/lightgeist/ghostize(can_reenter_corpse = TRUE, send_the_signal = TRUE)
+/mob/living/simple_animal/hostile/lightgeist/ghostize(can_reenter_corpse = TRUE, special = FALSE)
 	. = ..()
 	if(.)
 		death()