I have seen so many people buying these lately that the stores run out of them frequently, and I see people everywhere drinking these even more than soda and other caffeinated drinks which we know are addictive. I asked one person why they were angry when the shelf was empty, and they said to me that they could not function without one! I asked them if they meant it was like coffee, and they said oh no, it's more serious than that. They literally can't function and get sleepy if they don't have one. Is this something going on in society everywhere, or just my home town?