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Aluminum Christmas Trees for the fact that you can actually create a floor-covering (though probably not room-filling) amount of suds by adding a ridiculous amount of soap and/or the wrong sort of soap. (For instance, it's a horrible idea to put liquid dish soap like you'd use in a sink in a clothes washer.) So long as it's just suds, though, the problem will be more with the fine coating of soap residue on all affected surfaces and the potential for electrical shorts than with serious water damage.
Surprisingly Realistic Outcome (formerly Reality Ensues) would apply when a washer or sink actually overflows because of a clogged drain or a malfunction, and you get a flood of soapy water rather than suds.
Thanks. Sounds good. And, come to think of it, I guess in cases where it does play out the way I described, Rule of Funny would apply.
Something I've seen before often in cartoons, though it doesn't necessarily have to be a cartoon. Some examples are covered at Domestic Appliance Disaster, but what's being talked about there isn't really what I'm getting at. The point is - the character leaves the water running for dishes or a bath or whatever. They get called away or have to leave for whatever reason and when they come back, suddenly the place is, as I say, flooded with bubbles. Often the gag is that once they manage to clear all the bubbles away, then everything is nicely sparkling clean, so it's an end benefit. But the point I'm getting at is that if they left the water running, then what should really happen is that the place would be literally flooded. Sure, there may also be a lot of bubbles, but realistically there should also be serious water damage.
Edited by JMQwilleran