Continuing the theme. If it can leak, it will!
Believe it or not, one of the plastic filter canisters in our RO/DI system broke at the neck and dropped to the floor with a bang. Once when the plastic shattered and once when it hit the floor. Believe it or not, we happened to be home AND someone was in the kitchen when it broke mid-day. A quick turn of the water shut-off valve and damage was contained.
Let this be one of many lessons we learned the hard way. We were lucky … this time.