diff --git a/code/game/objects/items/devices/PDA/PDA.dm b/code/game/objects/items/devices/PDA/PDA.dm
index cfb3cd14c7c..85a664ad9fd 100755
--- a/code/game/objects/items/devices/PDA/PDA.dm
+++ b/code/game/objects/items/devices/PDA/PDA.dm
@@ -849,7 +849,9 @@ var/global/list/obj/item/device/pda/PDAs = list()
 
 /obj/item/device/pda/proc/create_message(var/mob/living/U = usr, var/obj/item/device/pda/P)
 
-	var/t = input(U, "Please enter message", name, null) as text
+	var/t = input(U, "Please enter message", name, null) as text|null
+	if(!t)
+		return
 	t = sanitize(copytext(t, 1, MAX_MESSAGE_LEN))
 	t = readd_quotes(t)
 	if (!t || !istype(P))
diff --git a/code/modules/mob/living/silicon/robot/life.dm b/code/modules/mob/living/silicon/robot/life.dm
index eac013eb8b1..4d572377700 100644
--- a/code/modules/mob/living/silicon/robot/life.dm
+++ b/code/modules/mob/living/silicon/robot/life.dm
@@ -26,11 +26,12 @@
 
 /mob/living/silicon/robot/proc/use_power()
 	if (is_component_functioning("power cell") && cell)
-		for(var/obj/item/borg/B in module.modules)
-			if(B.powerneeded)
-				if((cell.charge * 100 / cell.maxcharge) < B.powerneeded)
-					src << "Deactivating [B.name] due to lack of power!"
-					unEquip(B)
+		if(module)
+			for(var/obj/item/borg/B in module.modules)
+				if(B.powerneeded)
+					if((cell.charge * 100 / cell.maxcharge) < B.powerneeded)
+						src << "Deactivating [B.name] due to lack of power!"
+						unEquip(B)
 		if(src.cell.charge <= 0)
 			uneq_all()
 			update_headlamp(1)
diff --git a/code/modules/mob/living/silicon/robot/robot.dm b/code/modules/mob/living/silicon/robot/robot.dm
index ce0e238fb31..06bd83ed96f 100644
--- a/code/modules/mob/living/silicon/robot/robot.dm
+++ b/code/modules/mob/living/silicon/robot/robot.dm
@@ -224,7 +224,9 @@ var/list/robot_verbs_default = list(
 		modules = list("Peacekeeper")
 	if(mmi != null && mmi.alien)
 		modules = "Hunter"
-	modtype = input("Please, select a module!", "Robot", null, null) in modules
+	modtype = input("Please, select a module!", "Robot", null, null) as null|anything in modules
+	if(!modtype)
+		return
 	designation = modtype
 	var/module_sprites[0] //Used to store the associations between sprite names and sprite index.
 
diff --git a/code/modules/reagents/Chemistry-Machinery.dm b/code/modules/reagents/Chemistry-Machinery.dm
index 55ba20e3880..7f090a72be6 100644
--- a/code/modules/reagents/Chemistry-Machinery.dm
+++ b/code/modules/reagents/Chemistry-Machinery.dm
@@ -569,12 +569,19 @@
 		else if (href_list["createpill"] || href_list["createpill_multiple"])
 			if(!condi)
 				var/count = 1
-				if (href_list["createpill_multiple"]) count = isgoodnumber(input("Select the number of pills to make.", 10, pillamount) as num)
+				if (href_list["createpill_multiple"])
+					count = input("Select the number of pills to make.", 10, pillamount) as num|null
+					if(count == null)
+						return
+					count = isgoodnumber(count)
 				if (count > 20) count = 20	//Pevent people from creating huge stacks of pills easily. Maybe move the number to defines?
 				if (count <= 0) return
 				var/amount_per_pill = reagents.total_volume/count
 				if (amount_per_pill > 50) amount_per_pill = 50
-				var/name = reject_bad_text(input(usr,"Name:","Name your pill!","[reagents.get_master_reagent_name()] ([amount_per_pill] units)"))
+				var/name = input(usr,"Name:","Name your pill!","[reagents.get_master_reagent_name()] ([amount_per_pill] units)") as text|null
+				if(!name)
+					return
+				name = reject_bad_text(name)
 				while (count--)
 					var/obj/item/weapon/reagent_containers/pill/P = new/obj/item/weapon/reagent_containers/pill(src.loc)
 					if(!name) name = reagents.get_master_reagent_name()
@@ -588,7 +595,10 @@
 							P.forceMove(loaded_pill_bottle)
 							src.updateUsrDialog()
 			else
-				var/name = reject_bad_text(input(usr,"Name:","Name your bag!",reagents.get_master_reagent_name()))
+				var/name = input(usr,"Name:","Name your bag!",reagents.get_master_reagent_name()) as text|null
+				if(!name)
+					return
+				name = reject_bad_text(name)
 				var/obj/item/weapon/reagent_containers/food/condiment/pack/P = new/obj/item/weapon/reagent_containers/food/condiment/pack(src.loc)
 				if(!name) name = reagents.get_master_reagent_name()
 				P.originalname = name
@@ -598,13 +608,20 @@
 		else if (href_list["createpatch"] || href_list["createpatch_multiple"])
 			if(!condi)
 				var/count = 1
-				if (href_list["createpatch_multiple"]) count = isgoodnumber(input("Select the number of patches to make.", 10, patchamount) as num)
+				if (href_list["createpatch_multiple"])
+					count = input("Select the number of patches to make.", 10, patchamount) as num|null
+					if(count == null)
+						return
+					count = isgoodnumber(count)
 				if(!count || count <= 0)
 					return
 				if (count > 20) count = 20	//Pevent people from creating huge stacks of patches easily. Maybe move the number to defines?
 				var/amount_per_patch = reagents.total_volume/count
 				if (amount_per_patch > 40) amount_per_patch = 40
-				var/name = reject_bad_text(input(usr,"Name:","Name your patch!","[reagents.get_master_reagent_name()] ([amount_per_patch] units)"))
+				var/name = input(usr,"Name:","Name your patch!","[reagents.get_master_reagent_name()] ([amount_per_patch] units)") as text|null
+				if(!name)
+					return
+				name = reject_bad_text(name)
 				while (count--)
 					var/obj/item/weapon/reagent_containers/pill/patch/P = new/obj/item/weapon/reagent_containers/pill/patch(src.loc)
 					if(!name) name = reagents.get_master_reagent_name()
@@ -614,7 +631,10 @@
 					reagents.trans_to(P,amount_per_patch)
 		else if (href_list["createbottle"])
 			if(!condi)
-				var/name = reject_bad_text(input(usr,"Name:","Name your bottle!",reagents.get_master_reagent_name()))
+				var/name = input(usr,"Name:","Name your bottle!",reagents.get_master_reagent_name()) as text|null
+				if(!name)
+					return
+				name = reject_bad_text(name)
 				var/obj/item/weapon/reagent_containers/glass/bottle/P = new/obj/item/weapon/reagent_containers/glass/bottle(src.loc)
 				if(!name) name = reagents.get_master_reagent_name()
 				P.name = "[name] bottle"