Witness the stress relief revolution unfold.

Step one: upload a photo of your worst enemy to your PC screen (boss, mother-in-law etc.). Step two: plug the squidgy rubber face into your USB port and smack it repeatedly. Step three: watch gleefully as your nemesis takes a richly-deserved on-screen beating, complete with satisfyingly realistic groans and screams.

This is about a thousand times more gratifying than sticking a photo on a dartboard. Web chatter regarding USB Punch Head has reached such excessive levels that GCHQ has been monitoring developments.