I broke one awhile back. Was in my sink, full of water and Oxyclean, cleaning it. Had a couple of tough spots that wouldn't come out, so I was using a carboy cleaner (the one you attach to a drill), by hand, just for a couple of spots. It slipped out of my hand, and the head of it struck the bottom corner of the carboy, literally was like a bomb going off with the rush of water and such out of it. Had a small lake in the kitchen for a bit, as the water rushed out so fast that the sink couldn't handle it.