There was a mild panic when the hot water coupling under the sink failed and sprayed hot water through the cupboards. The plastic push on connector failed, just like the one on the Jayco caravan at Orbost, see link to that post.
At least this time the damage was limited to non perishables, but we still had to pull everything out to mop up and dry the cupboards and floor, and I knew how to fix it from the Orbost experience.