Tasksplosion
The unexpected and natural process whereby a simple, single task requires you to complete a whole set of tasks, some of them unrelated to the one at hand.
Sometimes stupid things lead to a tasksplosion. I realized we were out of garbage bags, so I went to the basement to get some. There weren't any, so I have to go to the grocery store. But to do that, I'll have to 1) Gas up the car, 2) Go to the ATM and get money so I can pay for the gas, 3) Go to the grocery store and buy the bags and finally go home. But the garbage can is really filthy so I have to clean it first. Oops we're out of cleaning products and paper towels... another tasksplosion!