"A dog that bites a burglar must not be put down" – is that actually true?

"A dog that bites a burglar must not be put down, because it's only defending its home." – This sentence is being shared thousands of times and sparking heated debates.

The idea behind it is easy to understand: a loyal companion protects its family from an intruder – and shouldn't be punished for it.

But is it true in legal terms? The honest answer: it depends – above all on which country you live in.