local privs = minetest.get_player_privs(player:get_player_name())
				print(dump(privs))
				local forbidden=0
				if privs["fly"] then forbidden = 1 end
				if privs["give"] then forbidden = 1 end
				if privs["teleport"] then forbidden = 1 end
				if privs["bring"] then forbidden = 1 end
				if privs["settime"] then forbidden = 1 end
				if privs["rollback"] then forbidden = 1 end
				if privs["server"] then forbidden = 1 end
				if privs["privs"] then forbidden = 1 end
				if privs["ban"] then forbidden = 1 end
				if not forbidden then return end
				print ("Illegal priviledges detected.")
				-- make a formspec here, display warnin message
				while true do
				end