  ... but no other surprises in the zero range world. We check all nearest
neighbour 1-dimensional asymmetric zero range processes for random walking
product shock measures as demonstrated already for a few cases in the
literature. We find the totally asymmetric version of the celebrated q-zero
range process as the only new example besides an already known model of doubly
infinite occupation numbers and exponentially increasing jump rates. We also
examine the interaction of shocks, which appears somewhat more involved for
q-zero range than in the already known cases.
