code: def sample_t(self,n):
          
          return numpy.random.uniform(size=n)*self._tdisrupt
docs: NAME:
             sample_t
          PURPOSE:
             generate a stripping time (time since stripping); simple implementation could be replaced by more complicated distributions in sub-classes of streamdf
          INPUT:
              n - number of points to return
          OUTPUT:
             array of n stripping times
          HISTORY:
             2015-09-16 - Written - Bovy (UofT)