The infinite loop of a programmer's brain in action! When the wife said "while you're out, buy some milk," our poor dev interpreted it as a while condition - literally "while (youAreOut) { buyMilk(); }" Since he never returned home, he never stopped being "out," so the condition never evaluated to false. Now he's trapped forever in the milk-buying loop, probably debating whether to optimize his route or refactor the entire grocery store's layout.