Have you ever been so eager to have coffee that you poured yourself a cup before the batch finished brewing? Or were at least were tempted to? When I was at home with my parents, in year 2013, I was going to pour myself a nice, fresh cup of coffee as soon as I could. The coffee machine function stopped the flow, allowing a cup to be poured premature, so why not? My dad stopped me before I could!
He went, "No, no, no! Don't do that!"