I was seven miles into my 25 mile lunch ride along the Bay. I downshifted as I started up a hill; the brifter went "clickclickclick" but there was, oddly, no resistance. I looked back at my rear dérailleur and it was in its smallest cog. I tugged at the dérailleur cable and that's when the housing popped out of the brifter with the frayed cable poking out. Drat.
I'm riding northeast and I have 10-15 mph winds out of the north along the Bay, with rolling hills. Do I continue my ride, pushing against the headwind in the big gear? Or do I turn around? What decision would you make?