My fridge beeps if I leave the door open. My last fridge had a weighted door that would shut slowly once you let go of it and moved away. I think that newer fridges are deliberately designed to have doors that don't shut automatically so that it beeps and you are duly impressed with the clever little beep. And possibly pay extra for that little beep.
My dishwasher beeps when it finishes washing. My last one didn't.
My microwave beeps when the food is finished heating and THEN beeps again to remind me if I don't take the food out of the microwave after a certain amount of minutes. Then beeps again if I still don't take it out.
My washing machine beeps when if finishes.
As the the dryer.
When I plug in my mobile phone at night (to charge up) it beeps and then, fifteen or so minutes later, it beeps again to tell me it is now fully charged. That second beep often wakes me up just after I have gone to sleep. And sometimes, for no reason at all, it just does a random beep at some stupid time like 3.00 am in the morning.
My car beeps if I open the door with the lights on. Or open the door and the key is still in the ignition. Or my bag is too heavy on the passenger seat and the car thinks my bag should put a seat belt on.
Everywhere I go I hear beeps.
So I want to leave a message after all those beeps.