How do you swallow upside down while you're driving?

I had hiccups for 30 straight minutes on my drive back from the Central Coast last night. 30 minutes may not seem like a long time while you're sitting in front of your TV, but alone... in the car... at 11pm... it's forever! Each time I thought they had gone and I began to rejoice in my heart... another came, then another, then another. It was as if my diaphragm were mocking me. I never knew how sadistic a muscle could be. Just as I was ready to give up, it finally relented in allowing me to take a deep breath. Needless to say, I finally made it home, but I've been secretly cursing my diaphragm all day (do you think it knows?)