What sound do you find really annoying?

Is there a noise you find really annoying? Maybe it's a certain song, or something else entirely.

For some people living in the Murcia region of Spain it may well be Happy Birthday after they were forced to hear the song over and over and over again.

The ear pollution happened after the public address system of Ceip Hellin Lasheras public school, in Javali Viejo, malfunctioned and was playing the song on loop throughout the night.

In the end the fire department was called in to disconnect it!

We're sure the residents living close by weren't too happy, although if it was someone's birthday at least they had plenty of chances to enjoy the song!

What sound would you hate to hear repeated over and over?

Let us know in the comments below.