When I initially walk over SADD-NoExit, the game freezes for a short but
noticeable moment although the code run looks rather lightweight.

	if (done_quest("SADD's power supply")) and
	   (not SADD_trick) then
		SADD_trick = true
		change_obstacle_state("SADDGun1", "enabled")
		change_obstacle_state("SADDGun2", "enabled")
		change_obstacle_state("BreakableWall2", "broken")
		start_chat("SADD")
	end

Can we improve performance somehow?