anchor.diff:  
   
   /turf/simulated/wall/proc/try_decon(obj/item/weapon/W as obj, mob/user as mob, turf/T as turf)
  +	if(!istype(T,/turf/simulated/wall)//this goes anywhere ANYWHERE it needs to.
  +		return 0 //SCREW YOU
   	if( istype(W, /obj/item/weapon/weldingtool) )
   		var/obj/item/weapon/weldingtool/WT = W
   		if( WT.remove_fuel(0,user) )
  
positive.code: 
  
  /turf/simulated/wall/proc/try_destroy(obj/item/weapon/W as obj, mob/user as mob, turf/T as turf)
  	if (istype(W, /obj/item/weapon/pickaxe/drill/diamonddrill))
  		user << "<span class='notice'>You begin to drill though the wall.</span>"
  		if(do_after(user, slicing_duration*0.6))  // diamond drill is faster than welding tool slicing
  
negative.code: 
  /turf/simulated/wall/narsie_act()
  	if(prob(20))
  		ChangeTurf(/turf/simulated/wall/cult)
  