  We have identified two quiescent GRBs (bursts having two or more
widely-separated distinct emission episodes) in which the post-quiescent
emission exhibits distinctly different characteristics than the pre-quiescent
emission. In these two cases (BATSE GRBs 960530 and 980125), the second
emission episode has a longer lag, a smoother morphology, and softer spectral
evolution than the first episode. Although the pre-quiescent emission satisfies
the standard internal shock paradigm, we demonstrate that the post-quiescent
emission is more consistent with external shocks. We infer that some observed
soft, faint, long-lag GRBs are external shocks in which the internal shock
signature is not observed. We further note that the peak luminosity ratio
between quiescent episodes is not in agreement with the ratio predicated by the
lag vs. peak luminosity relationship. We briefly discuss these observations in
terms of current collapsar jet models.
