Ha I did something like this. My back was out, and I had my pops filling up my 29 high, it was also on a tall stand so I had to lift the 5g bucket over my head, and couldn't do it that day. So Any how it was an eclipse hood. I took out 15g, and asked my day to fill it back up. He didn't know the bucket was a 5g or something, and thought you had to fill up to the top (The back hood is about 3in) Well he ended up pouring 5g of water all over the tank, came out the sides,, soaked the floors, walls and electrical. I wanted to kill him, but oh well it was kinda funny.
Oh, I also had cats. One day I came home and my daughter ran through the house ahead of my husband and I, and slipped. what the heck she fall on? Ran up to her only to discover the entire house was flooded. The cat had gotten on top of the tank and knocked a hose off and flooded the house. About 6 gallons of water warped the floors in my living room, dinning room, and soaked the rugs and couches. Took about 6 hours to clean up...