Can I declare an interest, as my sister is profoundly deaf? Can I just follow on from the point that Rhun ap Iorwerth made? For someone who is deaf, light fulfils the same role as sound does for those of us who can hear. What is being done to ensure that deaf people have a flashing light fire alarm—as a sound fire alarm will have no use to them whatsoever—and, leading on from what Rhun ap Iorwerth said, flashing light doorbells so that they can press the doorbell and it flashes in the house? Because, again, sound makes no difference, and I agree with Rhun ap Iorwerth entirely, we can’t have people leaving their front door open because they can’t hear people knocking it.