Yeah. My microwave makes five beeps whenever the timer runs out, regardless if I open the door or not.

In terms of appliance beeping aggravation, I've yet to have one that tops an old slow cooker I had. When you turned it on, it just had a beeeeeeeeeeeeeeeeeeep that lasted for multiple seconds and made me want to throw it out the window every time I had to use it. It was like a goddamn siren alerting the whole apartment complex to the possibility of pot roast in 4-8 hours.