This is my submission for Illustration Friday this week.  The theme for this week is "Warning".  I thought about doing something like a caution sign or something like that.  Or depciting something dangerous, but it seemed like a lot of people were doing that.  And then the proverb popped in my head, "red skies at night is a sailor's delight, but red skies in the morning is a sailors warning."  So that is what my image is based on.