diff --git a/code/datums/mind.dm b/code/datums/mind.dm
index dfc3fab8673..69cc543515c 100644
--- a/code/datums/mind.dm
+++ b/code/datums/mind.dm
@@ -76,7 +76,7 @@
 
 /datum/mind/Destroy()
 	SSticker.minds -= src
-	QDEL_LIST(antag_datums)
+	remove_all_antag_datums()
 	current = null
 	return ..()
 
@@ -1541,14 +1541,20 @@
  */
 /datum/mind/proc/remove_antag_datum(datum_type)
 	var/datum/antagonist/A = has_antag_datum(datum_type)
-	LAZYREMOVE(antag_datums, A)
 	qdel(A)
 
 /**
  * Removes all antag datums from the src mind.
+ *
+ * Use this over doing `QDEL_LIST(antag_datums)`.
  */
-/datum/mind/proc/remove_all_antag_datums() //For the Lazy amongst us.
-	QDEL_LIST(antag_datums)
+/datum/mind/proc/remove_all_antag_datums()
+	// This is not `QDEL_LIST(antag_datums)`because it's possible for the `antag_datums` list to be set to null during deletion of an antag datum.
+	// Then `QDEL_LIST` would runtime because it would be doing `null.Cut()`.
+	for(var/datum/antagonist/A as anything in antag_datums)
+		qdel(A)
+	antag_datums?.Cut()
+	antag_datums = null
 
 /// This proc sets the hijack speed for a mob. If greater than zero, they can hijack. Outputs in seconds.
 /datum/mind/proc/get_hijack_speed()
diff --git a/code/modules/antagonists/traitor/datum_traitor.dm b/code/modules/antagonists/traitor/datum_traitor.dm
index 84f82f82f76..6e1dd0f615a 100644
--- a/code/modules/antagonists/traitor/datum_traitor.dm
+++ b/code/modules/antagonists/traitor/datum_traitor.dm
@@ -44,7 +44,7 @@
 		slaved.leave_serv_hud(owner)
 		owner.som = null
 
-	owner.current.client.chatOutput?.clear_syndicate_codes()
+	owner.current.client?.chatOutput?.clear_syndicate_codes()
 
 	// Try removing their uplink, check PDA
 	var/mob/M = owner.current