Oooh! Same thing happened to me.
First time, I had the outlet hose kinked, and the hose leading to the chiller blew. Water everywhere, and I couldn't just reconnect it. Had to cut it off, bolt to the hardware store to get a clamp, then reconnect.
Second time, the outlet hose came off the copper. Sprayed water all in the kettle. I thought for sure that batch would come out infected, but it was fine.
Only difference is I brew in my garage, so no real harm done from spraying water.