We've all broken things, intentionally and unintentionally. It can be done in a spectacular manner: Opera singers are known to be able to break glass with the pure power of the voice.

Other breakages seem to occur without effort and exceptional regularity. Mobile phones seem especially sensitive to the elements, giving up the ghost at the slightest provocation.

Some things seem exceptionally difficult to rend asunder. Atoms, for example, are notoriously difficult. And even that could seem like nothing next to the habits that people regularly try to break and fail.

So this week, we're asking you:

• Have you ever broken anything valuable?

• Is it harder to reassemble things than break them?

• Was the most painful break you have endured physical or emotional?

• What is the hardest thing to break?

• What do you think you have broken most of? (Is it eggs?)

• Why exactly do we say 'break a leg'?