Sometimes a mobile phone feature reveals itself only after a few pints have been chugged and you're messing about with mates.

That was the case with Sony Ericsson's PhotoDJ software which I became acquainted with while indulging a seven-hour boozing session on Clapham Common last Sunday.

To those unfamiliar with it, PhotoDJ allows you to edit digital photos in the camera - in my case a Sony Ericsson W880i - without the need to load the images onto a PC.

So for instance, you can do sensible stuff such as remove red-eye, rotate pictures to the proper landscape/portrait dimensions and perform basic white-level correction.

Or you can do something profoundly silly.

Like stick Dame Edna Everage glasses on a mate's face. Or place a Renaissance-style wig onto the bonce of a balding business colleague (sorry Guy). Or stick your missus in a snake-infested jail cell. Nice.

With the bundled clip art and frame overlays all these pathetic pleasures are but a click away. And with the right amount of alcohol intake you don't have to be an oily-faced 14-year old to find them all hugely amusing.

Check out our guide to using the PhotoDJ software to ensure your dose of stupid fun.