Oh, this isn't an accident waiting to happen, is it?

Spotted by Julia M in The Daily Mail:

A dairy farm has come up with a new form of farming technology - putting QR codes on to cows. [Literally - the cows have giant QR codes sprayed on them].

The idea behind the digital bar-codes at Southfields farm in Somerby, Leicestershire, is to give consumers more information about their cows’ lives. Passers-by can scan the QR code using an app on a smartphone and get quick access to a website which contains information about the farm’s 100-strong herd of dairy cows...

She said: "We run a lot of farm visits and we’re always keen to try new things to help people get close to the cows and see first-hand what dairy farming is about. Everyone seems to have a smartphone nowadays, so we had the idea of letting Shamrock ‘speak’ to visitors who want to find out more."

The cows don't need fancy Smartphones to communicate with visitors, of course, they can use their hooves and horns to get their opinions across.