
The first vending machines were built to dispense holy water by Heron of Alexandria. He was a famous engineer of his time, back in the first century AD. If only he knew what his invention would become two thousand years later.
I love hearing the machine work, the way it releases its products onto its floor and the little doggy door that allows me to reach in and take. When I was little I always tried to get my arm up into the vending machine to take an extra candy bar for free — I was trying to steal — but thankfully I hurt my arm once and I learned my lesson.