Ouch that's not good at all. I had that happen with a hose under my kitchen sink about a year ago. I went to take a shower and got out, and heard water gushing from the kitchen. At first, I thought my dishwasher was messing up but noticed water just flooding the floor and gushing out from the cabinets. Good thing the apartment manager's office was right downstairs cause I ran like crazy with wet hair and all (no I wasn't naked lol) and told them what happened. I told her what happened and maintenance was up here in 5 seconds lol
Aaaaah so your laundry was quite possibly sabotaged!! And a motive..... "meowmy is spending too much time on TCS and doing laundry! We are being sooooooo neglected!" Today the laundry, tomorrow the world!