diff --git a/sys/apis/socket.lua b/sys/apis/socket.lua
index 9b91750..bdd1ff5 100644
--- a/sys/apis/socket.lua
+++ b/sys/apis/socket.lua
@@ -81,7 +81,8 @@ local function loopback(port, sport, msg)
 end
 
 local function newSocket(isLoopback)
-	for i = 16384, 32767 do
+	for _ = 16384, 32767 do
+		local i = math.random(16384, 32767)
 		if not device.wireless_modem.isOpen(i) then
 			local socket = {
 				shost = os.getComputerID(),
diff --git a/sys/apis/sound.lua b/sys/apis/sound.lua
new file mode 100644
index 0000000..888131a
--- /dev/null
+++ b/sys/apis/sound.lua
@@ -0,0 +1,12 @@
+local peripheral  = _G.peripheral
+local speaker     = peripheral.find('speaker')
+
+local Sound = { }
+
+function Sound.play(sound, vol)
+	if speaker then
+		speaker.playSound('minecraft:' .. sound, vol or 1)
+	end
+end
+
+return Sound
diff --git a/sys/apis/ui.lua b/sys/apis/ui.lua
index 0b51ab1..4fd6bed 100644
--- a/sys/apis/ui.lua
+++ b/sys/apis/ui.lua
@@ -3,6 +3,7 @@ local class      = require('class')
 local Event      = require('event')
 local Input      = require('input')
 local Peripheral = require('peripheral')
+local Sound      = require('sound')
 local Transition = require('ui.transition')
 local Util       = require('util')
 
@@ -2542,6 +2543,7 @@ end
 
 function UI.Notification:error(value, timeout)
 	self.backgroundColor = colors.red
+	Sound.play('entity.villager.no', .5)
 	self:display(value, timeout)
 end