A DOG has baffled itself after waking up as a result of its own fart.

Alex Bishop, an eight year-old Labrador, had been sleeping contently in his basket in his owners’ living room when his own fart lead him to believe the house might be under attack in some way.

Bishop said: “What the hell was that? Are the Russians invading?

“Check the front door, check the windows, something’s going on here.”

Bishop then proceeded to walk around the house looking for unseen enemies before eventually going back to his basket and going back to sleep, none the wiser.

Bishop’s owner, Martin, said: “It was a very loud fart. To be fair, if I’d have been asleep it would probably have woken me up too.”