Law: groceries purchased by a typical student are always consumed at at least an exponential rate. Assuming a grocery shopping period of N weeks, the amount of groceries follows a curve shown in the figure below:

Detailed Description:

A typical N week grocery shopping period begins when a student realizes that there is finally food in the house. He/she suddenly decides that cooking is somewhat fun. Enchanted by the smell of newly purchased chips and fascinated by the look of the fresh meets, the students starts cooking major meals that drain the grocery supply at a drastic exponential rate.

The starving period (also known as the noodle-soup-and-hot-dogs or crackers-and-cheese or craft-dinner period) occurs approximately N/2 weeks into the grocery shopping period. At this point the amount of remaining groceries is dangerously low. The few things left are 99 cents noodle soups, hot dogs, craft dinners, crackers and cheese sticks. These are consumed in various combinations over the remaining N/2 weeks of the grocery shopping period.

Each N week grocery shopping period ends with “oh f**k, I have nothing to eat” epiphany that typically results in a desperate 2 AM grocery run to a nearby 24 hours supermarket, consequently, restarting the cycle.