Two config variables added - disable_player_mice and uneducated_mice. The first, if enabled, prevents players from spawning as mice, and the second, if enabled, prevents mice from understanding human speech (which they now do my default)

universal_understand = 1 now allows player-controlled mobs to understand what everybody is saying without necessarily allowing them to talk back intelligibly. Mice have universal_understand = 1 by default.

code/controllers/configuration.dm

@@ -43,7 +43,8 @@
 	var/Tickcomp = 0
 	var/socket_talk	= 0					// use socket_talk to communicate with other processes
 	var/list/resource_urls = null
-
+	var/antag_hud_allowed = 0			// Ghosts can turn on Antagovision to see a HUD of who is the bad guys this round.
+	var/antag_hud_restricted = 0                    // Ghosts that turn on Antagovision cannot rejoin the round.
 	var/list/mode_names = list()
 	var/list/modes = list()				// allowed modes
 	var/list/votable_modes = list()		// votable modes
@@ -61,6 +62,9 @@
 	var/automute_on = 0					//enables automuting/spam prevention
 	var/jobs_have_minimal_access = 0	//determines whether jobs use minimal access or expanded access.
 
+	var/disable_player_mice = 0
+	var/uneducated_mice = 0 //Set to 1 to prevent newly-spawned mice from understanding human speech
+
 	var/usealienwhitelist = 0
 	var/limitalienplayers = 0
 	var/alien_to_human_ratio = 0.5
@@ -385,6 +389,11 @@
 				if("ticklag")
 					Ticklag = text2num(value)
 
+				if("allow_antag_hud")
+					config.antag_hud_allowed = 1
+				if("antag_hud_restricted")
+					config.antag_hud_restricted = 1
+
 				if("socket_talk")
 					socket_talk = text2num(value)
 
@@ -419,6 +428,12 @@
 				if("ghost_interaction")
 					config.ghost_interaction = 1
 
+				if("disable_player_mice")
+					config.disable_player_mice = 1
+
+				if("uneducated_mice")
+					config.uneducated_mice = 1
+
 				if("comms_password")
 					config.comms_password = value
 

code/modules/mob/dead/observer/observer.dm

@@ -293,6 +293,10 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 	set name = "Become mouse"
 	set category = "Ghost"
 
+	if(config.disable_player_mice)
+		src << "<span class='warning'>Spawning as a mouse is currently disabled.</span>"
+		return
+
 	var/timedifference = world.time - client.time_died_as_mouse
 	if(client.time_died_as_mouse && timedifference <= mouse_respawn_time * 600)
 		var/timedifference_text
@@ -318,6 +322,8 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 		src << "<span class='warning'>Unable to find any unwelded vents to spawn mice at.</span>"
 
 	if(host)
+		if(config.uneducated_mice)
+			host.universal_understand = 0
 		host.ckey = src.ckey
 		host << "<span class='info'>You are now a mouse. Try to avoid interaction with players, and do not give hints away that you are more than a simple rodent.</span>"
 

code/modules/mob/living/simple_animal/friendly/mouse.dm

@@ -27,6 +27,7 @@
 	minbodytemp = 223		//Below -50 Degrees Celcius
 	maxbodytemp = 323	//Above 50 Degrees Celcius
 	universal_speak = 0
+	universal_understand = 1
 
 /mob/living/simple_animal/mouse/Life()
 	..()
@@ -50,6 +51,7 @@
 
 /mob/living/simple_animal/mouse/New()
 	..()
+	name = "[name] ([rand(1, 1000)])"
 	if(!body_color)
 		body_color = pick( list("brown","gray","white") )
 	icon_state = "mouse_[body_color]"

code/modules/mob/mob_defines.dm

@@ -207,6 +207,7 @@
 
 	//Whether or not mobs can understand other mobtypes. These stay in /mob so that ghosts can hear everything.
 	var/universal_speak = 0 // Set to 1 to enable the mob to speak to everyone -- TLE
+	var/universal_understand = 0 // Set to 1 to enable the mob to understand everyone, not necessarily speak
 	var/robot_talk_understand = 0
 	var/alien_talk_understand = 0
 

code/modules/mob/say.dm

@@ -66,7 +66,7 @@
 	if(!other)
 		return 1
 	//Universal speak makes everything understandable, for obvious reasons.
-	else if(other.universal_speak || src.universal_speak)
+	else if(other.universal_speak || src.universal_speak || src.universal_understand)
 		return 1
 	else if (src.stat == 2)
 		return 1
@@ -83,7 +83,7 @@
 		else
 			return 0
 
-	else if(other.universal_speak || src.universal_speak)
+	else if(other.universal_speak || src.universal_speak || src.universal_understand)
 		return 1
 	else if(isAI(src) && ispAI(other))
 		return 1