Ports new Brain Traumas from /tg/. Does not include the shitty creeper antag or Wizard Traumas, i'm porting wizard traumas later. Also adds the Desynchronizer and changes the way some heaRing args are handled.

code/datums/brain_damage/severe.dm

@@ -119,7 +119,7 @@
 	owner.update_disabled_bodyparts()
 
 /datum/brain_trauma/severe/paralysis/paraplegic
-	//can_gain = FALSE maybe breaks.
+	random_gain = FALSE
 	paralysis_type = "legs"
 	resilience = TRAUMA_RESILIENCE_ABSOLUTE
 
@@ -149,7 +149,7 @@
 /datum/brain_trauma/severe/monophobia
 	name = "Monophobia"
 	desc = "Patient feels sick and distressed when not around other people, leading to potentially lethal levels of stress."
-	scan_desc = "severe monophobia"
+	scan_desc = "monophobia"
 	gain_text = ""
 	lose_text = "<span class='notice'>You feel like you could be safe on your own.</span>"
 	var/stress = 0
@@ -168,7 +168,7 @@
 		if(stress > 10 && (prob(5)))
 			stress_reaction()
 	else
-		stress -= 4
+		stress = max(stress - 4, 0)
 
 /datum/brain_trauma/severe/monophobia/proc/check_alone()
 	if(HAS_TRAIT(owner, TRAIT_BLIND))