Ooh! Lucky you live in an apartment. Gah--my parents woke up in our house one morning to find water up past their ankles. A pipe had burst under the sink downstairs and flooded the basement.
It destroyed all of our furniture downstairs, all of the paint, the carpet, anything made of wood, etc. so we had to pay people to come help us pack it all up in boxes ASAP and store everything, then dry up the water, haul out our ruined items, and replace all the carpet and paint.
It was one very ugly mess.
We have also had fridge issues...those aren't pleasant. :/