Here in Canada in my small province there had been a "can ban" for many decades. The ban was mainly to protect the jobs of local bottling plants although the re

Here in Canada in my small province there had been a "can ban" for many decades. The ban was mainly to protect the jobs of local bottling plants although the reason was spun that it was to be green. Then in May 2008 the ban ended. Up until then it was only glass even 750ml pop which seemed massive. Pepsi had twisted spiral 750ml bottles that seemed to weigh 10kg each. When the can ban ended the 355ml pop bottles were replaced with plastic pop bottles but the plastic were 590ml. The 750ml glass disappeared and were replaced with 2 litre p[plastic bottles. At my old work we had a pop machine in the lunch room it had glass bottles. It was obviously designed to have plastic bottles or cans. When the bottle fell it sounds like someone dropped a bag of hammers from two floor above you. I observed how my co-workers who were used to drinking 355ml of pop now bought 590ml bottles of pop. The lunchroom fridge was stuffed with half drunk plastic bottles. Over the next few weeks there were fewer and fewer half bottles. Then eventually just a few half drunk 590ml pop bottles in the fridge. People unknowingly had trained themselves to drink nearly double the amount of pop. I wish I had recorded it in more detail. It was a fascinating human behaviour event to observe.