1. A small example of something before it occurs
2. A taste of things to come

… In 2008, when the global financial crisis battered the oil price, Venezuela got a foretaste of the current crisis. The Army was put in charge of food distribution. Soldiers are not trained to understand the global supply chain. Supermarkets emptied, people went hungry, and food ended up on the black market. Later, a hundred thousand tons of food was found rotting in warehouses at the ports.

From the post: How Venezuela went from a wealthy South American country to a failing state
Source: Venezuela, a Failing State (