Susan got up, made herself a cup of coffee and started her Saturday morning cleaning during which she removed the garbage can from underneath the sink and left it out to be emptied when she got around to it.
The garbage cans in her house are always filled to capacity because neither of her children will dump them unless they are asked to, or unless Susan does it herself. They will comply, often making her wait until after they complete whatever they claim to be doing so that they don't have to jump up and do it right then. She has been known to ask them three or four more times with lessening degrees of patience.
Kids. Whaddya gonna do (about them).
Ed. note: To be read rhetorically.
Susan went on to do something else, possibly to crawl back into bed and watch an episode of Last Tango In Halifax, and left the garbage can in the middle of the kitchen floor with trash bag filled with garbage still inside.
Later when Susan emerged to continue her June-Cleaver-ing she noticed there was something a little off in the kitchen. Everything looked fine, but she felt something was different.
It had been dumped, a new bag put in, and then returned to its place under the sink. One of her children had done this without being asked, which is something that has NEVER happened in the eleven years they have lived in the house.
Susan never imagined this would turn out to be such an auspicious day.