Driving

So I've just noticed something.  Rather I've just started thinking about something.  When I'm driving with people I generally keep the windows up, the sunroof closed, the music turned low, and the climate at a reasonable temperature.  However, after I've dropped them off or in some other way become the singular passenger of the car I automatically turn my music volume to the maximum of 40, crank the bass and subwoofer up to 6+, roll down my passenger's and driver's windows, open my sunroof, and turn the climate control down to low.  As I drive I belt whatever song is on the radio regardless of my familiarity with it.  If I don't know the lyrics I sing back-up or just make something up, but either way it's always loud.  I love the freedom and feeling the wind in my hair.  However, once I stop to pick up a passenger I turn the music down, turn the bass and subwoofer down to 0, roll up the windows and close the sunroof, and readjust the airflow and temperature.  I suddenly don't like being loud and I don't enjoy my hair being tossed about.  It's odd how I find some of my practices socially unacceptable yet I don't mind if other drivers notice.  That's just what I was thinking.