  GW170817 was not merely an absolute breakthrough in gravitational wave
astrophysics and a first in multi-messenger astronomy. The quality and
diversity of the electro-magnetic counterpart emission is staggering on its own
as well, including unprecedented kilonova spectra and a broadband off-axis
gamma-ray burst afterglow that has progressed along a trajectory of rise and
decay and by now has even been measured using very large baseline
interferometry. For these proceedings, I will summarize the points for
discussion that I presented during the workshop regarding off-axis short
gamma-ray bursts and their (un-)successful jets and their emission. Given that
developments are currently moving very fast in the field, I also touch on some
results that have appeared in the literature following the Vulcano meeting.
