One summer in the early 2000s there was a blackout along the whole west coast, I was in Palm Springs where the temperatures that time of year regularly exceed 110F. The water filtration shut off so all the city's water was declared possibly contaminated and the gas pumps were off so if you needed gas to get to water there was none. People realized the last clean source of water was bagged ice and started forming mobs banging on the locked doors of convenience stores. I saw people siphoning other people's gas. Basically all hell broke loose. The kicker? The power was only out for 6 hours. When people are scared it doesn't take long.