def reject(position_store, particles, random_particle):
    """Reject the move and return the particle to the original place.

    Parameters
    ----------
    position_store: float, array_like
        The x and y positions previously held by the particle that has moved.
    particles: util.particle.dt, array_like
        Information about the particles.
    random_particle: int
        Index of the random particle that is selected.

    Returns
    -------
    util.particle.dt, array_like
        Information about the particles, with the particle returned to the
        original position
    """
    particles['xposition'][random_particle] = position_store[0]
    particles['yposition'][random_particle] = position_store[1]
    return particles
