HA! I got you all beat! I have a tenant who lives in the basement apartment of my house. He moved in in April of 2006, and by January of 2007 it had rained from the ceiling in his apartment on 4 separate occasions. 3 were the fault of my dog walker who was watching the dogs and the tanks while I was on week long vacations- she happens to be my tenant's best friend, so I am off the hook on those.
First time I thought it would be okay if she just fed the fish while I was away. She told me the filter "was leaking" on my 90 gallon, the whole room (antique Persian run included) was soaked. She unplugged it and it stopped. (huh?) When I got home and plugged the filter back in (much to the relief of the fish) the problem was immediately clear. The water level got so low the spray bars from the filters were splashing water right out of the tank. It looked like someone had put a lawn sprinkler in my living room.
Next time I thought I better tell her how to refill the tanks when the water gets low. Of course this time the sponge in the overflow box on the 125 got clogged. She would hear the pump sucking air, assumed the water was low, so she kept pouring water into the sump. The pump kept pushing it up into the tank. It couldn't flow back into the sump. So guess where the water went. You got it- right out of the top of the tank. She just kept refilling and refilling the sump- what a disaster. Best part about this story was that she thought the leak was in the pipes in the floor- I came home to a $300 bill for an emergency plumber and a giant hole in the basement ceiling where he went looking for the leaking pipe! I don't even want to talk about the bill for fixing the ceiling.
Another time was a circuit breaker that was tripped and the return line to the sump on the 125 siphoned out about 40 gallons into the sump- which of course overflowed.
So then I made a hole in the return just above the water level to break the siphon in case it happened again. That hole subsequently grew a little tuft of BBA which clogged the hole just enough so it was like putting your thumb over the end of a hose- and the water was spraying straight up and back out of the tank.
I have a million stories like these. Some are "equipment failure". There are plenty of other spills that are my fault. Its just part of having MTS. I never do one water change at a time, I'm always draining one tank while filling another while pruning a third- then the phone rings or a friend stops by and the next thing you know...
I have nightmares about the sounds of "indoor rain" - I wake up in the middle of the night and can swear that I hear it.