Pants what?

I went jogging yesterday.  I took Robert's running belt which is made to strap around your waist and has cute little water bottles that fit into their slots and a pocket for your phone, ipod, whatever.  So I start jogging and the belt is moving all around.  I tightened it.  Ah, better.  So I thought.  I was running down Guadalupe (a main road) when I went to pull my shirt down from riding up I realized that my pants were falling down.  Did I feel it?  Nope.  It was a courteous check I was doing and blamo they were working their way 1/2 way down my bottom.  Oops.  So I "pulled" over and tied my pants much tighter and adjusted the belt to wearing it to the side.  It was a good one.  Ode to working out again.