I've been thinking lately how i have not had a genuine pilot light outage for quite a while. In fact, for a long time. I think it's because I had solar panels installed on the roof a couple years ago, and some of the panels are in the same area as the exhaust stack for the water heater. I'm thinking that maybe that changed the airflow around that part of the roof so that the whatever-it-was-that-blew-out-the-pilot can no longer do that.