anchor.diff:  		dx = targetturf.x - userturf.x
   		dy = targetturf.y - userturf.y
   		if((dx != initial_dx) || (dy != initial_dy))
  -			. = FALSE
  -			break
  +			return FALSE
   		if(loc_changed && !drifting && !(do_after_flags & DO_AFTER_ALLOW_NONSPACEDRIFT_RELATIVITY))
  -			. = FALSE
  -			break
  +			return FALSE
   	if((do_after_flags & DO_AFTER_REQUIRES_USER_ON_TURF) && !isturf(user.loc))
   		return FALSE
   	held = living_user?.get_active_held_item()
   	if((do_after_flags & DO_AFTER_DISALLOW_ACTIVE_ITEM_CHANGE) && (held != (tool || initially_held_item)))
  -		. = FALSE
  -		break
  +		return FALSE
   	if((do_after_flags & DO_AFTER_REQUIRE_FREE_HAND_OR_TOOL) && (!living_user?.is_holding(tool) && !length(living_user?.get_empty_held_indexes())))
  -		. = FALSE
  -		break
  +		return FALSE
   
   /// Requires absolute stillness in the user
   #define DO_AFTER_DISALLOW_MOVING_ABSOLUTE_USER		(1<<0)
  
positive.code: 	INVOKE_CALLBACK
  	if(cb_return == DO_AFTER_STOP)
  		return FALSE
  	else if(cb_return != DO_AFTER_PROCEED)
  		if(CHECK_FLAG_FAILURE)
  			return FALSE
  	if(((do_after_flags & DO_AFTER_DISALLOW_MOVING_ABSOLUTE_USER) && (user.loc != startlocuser)) || ((do_after_flags & DO_AFTER_DISALLOW_MOVING_ABSOLUTE_TARGET) && (target.loc != startloctarget)))
  		. = FALSE
  		break
  	else if(do_after_flags & DO_AFTER_DISALLOW_MOVING_RELATIVE)
  		ctu = get_turf(user)
  		ctt = get_turf(target)
  
negative.code: 	var/stage = DO_AFTER_STARTING
  	var/startlocuser = user.loc
  	var/startloctarget = target.loc
  	var/turf/user_turf = get_turf(user)
  	var/turf/target_turf = get_turf(target)
  	if(!userturf || !targetturf)
  		return FALSE
  	if((do_after_flags & DO_AFTER_REQUIRES_USER_ON_TURF) && !isturf(user.loc))
  