BBC's Watchdog has uncovered shocking evidence that prescription veterinary drugs can cost more, or less, depending on where you buy them from.

In one of the finest pieces of investigative journalism since Watergate, the erstwhile-criminal-law-barrister-cum-tv-reporter Robert Rinder discovered that he could buy a wormer for his dog from some online retailer for half the price that he'd bought it at his veterinary practice.

Incensed by his discovery that things can cost less online, Mr Rinder then asked a handful of pet owners whether they could recall seeing a sign at their practice to advise them that they could buy things cheaper elsewhere.

None could. But then I'll bet if he asked whether they could remember a sign for the toilet, they'd have struggled.

Still, by now certain they'd found evidence that pet owners are being 'fleeced', Watchdog then rang 70 practices to ask for the price of some common drugs and then compared them to the prices being offered by online retailers.

Their research confirmed the awful truth. Some places really do charge more than others.

Honestly, who, in a million years, would have guessed?

BBC Watchdog (piece starts at 42:25).

PS: Whilst you're here, take a moment to see our latest job opportunities for vet nurses.