diff --git a/code/modules/nano/modules/power_monitor.dm b/code/modules/nano/modules/power_monitor.dm
index 20bfce570f..ed7c64aa94 100644
--- a/code/modules/nano/modules/power_monitor.dm
+++ b/code/modules/nano/modules/power_monitor.dm
@@ -33,9 +33,7 @@
 		ui.open()
 		ui.set_auto_update(1)
 
-// Proc: refresh_sensors()
-// Parameters: None
-// Description: Refreshes list of active sensors kept on this computer.
+// Refreshes list of active sensors kept on this computer.
 /obj/nano_module/power_monitor/proc/refresh_sensors()
 	grid_sensors = list()
 	var/turf/T = get_turf(src)
@@ -46,9 +44,7 @@
 			else
 				grid_sensors += S
 
-// Proc: Topic()
-// Parameters: 2 (href, href_list - allows us to process UI clicks)
-// Description: Allows us to process UI clicks, which are relayed in form of hrefs.
+// Allows us to process UI clicks, which are relayed in form of hrefs.
 /obj/nano_module/power_monitor/Topic(href, href_list)
 	if(..())
 		return
diff --git a/code/modules/organs/organ_external.dm b/code/modules/organs/organ_external.dm
index 61a011e594..4bf7b9c99e 100644
--- a/code/modules/organs/organ_external.dm
+++ b/code/modules/organs/organ_external.dm
@@ -210,6 +210,7 @@
 
 	// sync the organ's damage with its wounds
 	src.update_damages()
+	owner.updatehealth() //droplimb will call updatehealth() again if it does end up being called
 
 	//If limb took enough damage, try to cut or tear it off
 	if(owner && loc == owner)
@@ -232,7 +233,6 @@
 					else
 						droplimb(0,DROPLIMB_BLUNT)
 
-	owner.updatehealth()
 	return update_icon()
 
 /obj/item/organ/external/proc/heal_damage(brute, burn, internal = 0, robo_repair = 0)
@@ -689,9 +689,9 @@ Note that amputating the affected organ does in fact remove the infection from t
 				if(src && istype(loc,/turf))
 					throw_at(get_edge_target_turf(src,pick(alldirs)),rand(1,3),30)
 				dir = 2
-			return
 		if(DROPLIMB_BURN)
 			new /obj/effect/decal/cleanable/ash(get_turf(victim))
+			qdel(src)
 		if(DROPLIMB_BLUNT)
 			var/obj/effect/decal/cleanable/blood/gibs/gore = new owner.species.single_gib_type(get_turf(victim))
 			if(victim.species.flesh_color)
@@ -705,8 +705,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 				I.removed()
 				if(istype(loc,/turf))
 					I.throw_at(get_edge_target_turf(src,pick(alldirs)),rand(1,3),30)
-
-	qdel(src)
+			qdel(src)
 
 /****************************************************
 			   HELPERS
diff --git a/code/modules/power/sensors/sensor_monitoring.dm b/code/modules/power/sensors/sensor_monitoring.dm
index 54b203a7d4..5f561fcde6 100644
--- a/code/modules/power/sensors/sensor_monitoring.dm
+++ b/code/modules/power/sensors/sensor_monitoring.dm
@@ -1,7 +1,4 @@
 // POWERNET SENSOR MONITORING CONSOLE
-//
-// Last Change 31.12.2014 by Atlantis
-//
 // Connects to powernet sensors and loads data from them. Shows this data to the user.
 // Newly supports NanoUI.
 
@@ -22,18 +19,14 @@
 	active_power_usage = 300
 	var/obj/nano_module/power_monitor/power_monitor
 
-// Proc: process()
-// Parameters: None
-// Description: Checks the sensors for alerts. If change (alerts cleared or detected) occurs, calls for icon update.
+// Checks the sensors for alerts. If change (alerts cleared or detected) occurs, calls for icon update.
 /obj/machinery/computer/power_monitor/process()
 	var/alert = check_warnings()
 	if(alert != alerting)
 		alerting = !alerting
 		update_icon()
 
-// Proc: update_icon()
-// Parameters: None
-// Description: Updates icon of this computer according to current status.
+// Updates icon of this computer according to current status.
 /obj/machinery/computer/power_monitor/update_icon()
 	if(stat & BROKEN)
 		icon_state = "powerb"
@@ -46,17 +39,12 @@
 		return
 	icon_state = "power"
 
-// Proc: New()
-// Parameters: None
-// Description: On creation automatically connects to active sensors. This is delayed to ensure sensors already exist.
+// On creation automatically connects to active sensors. This is delayed to ensure sensors already exist.
 /obj/machinery/computer/power_monitor/New()
 	..()
-	spawn(50)
-		power_monitor = new(src)
+	power_monitor = new(src)
 
-// Proc: attack_hand()
-// Parameters: None
-// Description: On user click opens the UI of this computer.
+// On user click opens the UI of this computer.
 /obj/machinery/computer/power_monitor/attack_hand(mob/user)
 	add_fingerprint(user)
 
@@ -64,16 +52,12 @@
 		return
 	ui_interact(user)
 
-// Proc: ui_interact()
-// Parameters: 4 (standard NanoUI parameters)
-// Description: Uses dark magic to operate the NanoUI of this computer.
+// Uses dark magic to operate the NanoUI of this computer.
 /obj/machinery/computer/power_monitor/ui_interact(mob/user, ui_key = "main", var/datum/nanoui/ui = null, var/force_open = 1)
 	power_monitor.ui_interact(user, ui_key, ui, force_open)
 
 
-// Proc: check_warnings()
-// Parameters: None
-// Description: Verifies if any warnings were registered by connected sensors.
+// Verifies if any warnings were registered by connected sensors.
 /obj/machinery/computer/power_monitor/proc/check_warnings()
 	for(var/obj/machinery/power/sensor/S in power_monitor.grid_sensors)
 		if(S.check_grid_warning())
diff --git a/code/modules/projectiles/projectile.dm b/code/modules/projectiles/projectile.dm
index 98293ebc7f..86e2f1b6da 100644
--- a/code/modules/projectiles/projectile.dm
+++ b/code/modules/projectiles/projectile.dm
@@ -278,6 +278,7 @@
 		if(kill_count-- < 1)
 			on_impact(src.loc) //for any final impact behaviours
 			qdel(src)
+			return
 		if((!( current ) || loc == current))
 			current = locate(min(max(x + xo, 1), world.maxx), min(max(y + yo, 1), world.maxy), z)
 		if((x == 1 || x == world.maxx || y == 1 || y == world.maxy))
@@ -289,6 +290,7 @@
 
 		if(!location)
 			qdel(src)	// if it's left the world... kill it
+			return
 
 		before_move()
 		Move(location.return_turf())