Think your pet hamster is safely inside his cage, indulging in hamster-like activities such as sleeping, running on its wheel and sleeping some more? Don't be so sure!
While you're amusing yourself by looking at funny animal videos on the internet, your pet could be wiggling his way to freedom - as demonstrated by the sneaky little chap in this clip, which comes courtesy of YouTube's Petsami.
Looks like it's time to play that music again.
To be fair, hamsters certainly aren't the only sneaky animals. Turns out there are lots of the little blighters...