Showing horses is more of a hobby...and yes in a way it is a second job.
I have been involved with horses since a was very little...Just because I did not list my occupation as a Major in the Marines was my choice....I choose to leave my Rank on the Base I do not expect you to understand that but I am not the only Marine who feels this way...It is just a personal choice....and working with my horses and fixing my barn keeps me from going bonkers it really helps keep my mind off of things.