Adding fingerprints to actions:

-breaking windoors
-wrenching/unwrenching pipe dispensers
-locking/unlocking crates
-breaking grilles
-smashing windows
-deconning walls

code/game/objects/structures/crates_lockers/closets/secure/secure_closets.dm

@@ -43,6 +43,7 @@
 /obj/structure/closet/secure_closet/proc/togglelock(mob/user as mob)
 	if(src.allowed(user))
 		src.locked = !src.locked
+		add_fingerprint(user)
 		for(var/mob/O in viewers(user, 3))
 			if((O.client && !( O.blinded )))
 				O << "<span class='notice'>The locker has been [locked ? null : "un"]locked by [user].</span>"

code/game/objects/structures/crates_lockers/crates.dm

@@ -290,6 +290,7 @@
 			src.locked = 0
 			overlays.Cut()
 			overlays += greenlight
+			add_fingerprint(user)
 			return
 		else
 			user << "<span class='notice'>[src] is locked.</span>"
@@ -303,6 +304,7 @@
 		src.locked = 1
 		overlays.Cut()
 		overlays += redlight
+		add_fingerprint(user)
 		return
 	else if ( (istype(W, /obj/item/weapon/card/emag)||istype(W, /obj/item/weapon/melee/energy/blade)) && locked &&!broken)
 		overlays.Cut()
@@ -313,6 +315,7 @@
 		src.locked = 0
 		src.broken = 1
 		user << "<span class='notice'>You unlock \the [src].</span>"
+		add_fingerprint(user)
 		return
 
 	return ..()

code/game/objects/structures/grille.dm

@@ -101,14 +101,14 @@
 
 /obj/structure/grille/attackby(obj/item/weapon/W as obj, mob/user as mob)
 	user.changeNext_move(8)
+	add_fingerprint(user)
 	if(istype(W, /obj/item/weapon/wirecutters))
 		if(!shock(user, 100))
 			playsound(loc, 'sound/items/Wirecutter.ogg', 100, 1)
-			if(destroyed)
-				new /obj/item/stack/rods(loc)
-			else
-				new /obj/item/stack/rods(loc)
-				new /obj/item/stack/rods(loc)
+			var/obj/item/stack/rods/newrods = new(loc)
+			transfer_fingerprints_to(newrods)
+			if(!destroyed)
+				newrods.amount = 2
 			qdel(src)
 	else if((istype(W, /obj/item/weapon/screwdriver)) && (istype(loc, /turf/simulated) || anchored))
 		if(!shock(user, 90))
@@ -181,15 +181,16 @@
 
 /obj/structure/grille/proc/healthcheck()
 	if(health <= 0)
+		var/obj/item/stack/rods/newrods = new(loc)
+		transfer_fingerprints_to(newrods)
+
 		if(!destroyed)
 			icon_state = "brokengrille"
 			density = 0
 			destroyed = 1
-			new /obj/item/stack/rods(loc)
 
 		else
 			if(health <= -6)
-				new /obj/item/stack/rods(loc)
 				qdel(src)
 				return
 	return

code/game/objects/structures/window.dm

@@ -220,15 +220,19 @@
 			var/index = null
 			index = 0
 			while(index < 2)
-				new /obj/item/weapon/shard(loc)
-				if(reinf) new /obj/item/stack/rods(loc)
+				spawnfragments()
 				index++
 		else
-			new /obj/item/weapon/shard(loc)
-			if(reinf) new /obj/item/stack/rods(loc)
+			spawnfragments()
 		qdel(src)
 		return
 
+/obj/structure/window/proc/spawnfragments()
+	var/newshard = new /obj/item/weapon/shard(loc)
+	transfer_fingerprints_to(newshard)
+	if(reinf)
+		var/newrods = new /obj/item/stack/rods(loc)
+		transfer_fingerprints_to(newrods)
 
 /obj/structure/window/verb/rotate()
 	set name = "Rotate Window Counter-Clockwise"