Fart and Dart

A carload of us were leaving a weekend party on a Sunday morning and Police were checking every vehicle for drunk drivers. Cop sticks his head in ds window and we were all laughing.
Cop Says .."what's so funny?"
My friend Dave responds " he just **** his.pants" while pointing to our buddy in passenger seat.
Cop backs out immediately and says "get going! "
Lol perfect timing.