Daniel of Valencia, Spain, built this clever waiter bot to dispense (warm?) beer:

This time, I show the operation of HeinyBot Waiter in static mode. In this mode, once activated the robot, it enters a loop oscillating movements, gestures and audio messages which only comes when we approach from the side or front to less than 80 cm. If we do one way or another he will turn to us to serve beer. First we have to pay, then keep the coin in his “pocket” and serve beer. To get it, we put your hand under the can and once we detected with the sensor of the clamp, release the can.

[Translated by Google!]