Of course it’s a well known “scientific phenomenon” that taking a shower focuses your thoughts. If you’re alone, that is. Well, if you’re not alone it focuses your thoughts too, sort of, but in a different way… One time long ago I was helping a friend assemble the engine to his crappy Fiat X-19. We had everything put back together. We has spark, we had gas, the timing marks were all lined up like they’re supposed to be, yet the darned thing wouldn’t start. We spent all day trying to figure it out, to no avail. The next morning (guess where) I figured it out. It’s possible to have all the timing marks lined up and have all that top dead center business squared away, but be 180 degrees out of phase, such that the sparky-sparky is occurring at the top of the exhaust stroke, see? It won’t run that way! Bingo, problem solved!