I think the right phrase is something like "worth thinking about" rather than "common". It's like the "in the very unlikely event of a water landing..." you hea

I think the right phrase is something like "worth thinking about" rather than "common". It's like the "in the very unlikely event of a water landing..." you hear on airplanes. It is very unlikely but there's something relatively easy you can do that will improve your chances if it does happen. Either way, it's disturbing that this might be "worth thinking about".