  Short-term variability and multiple velocity components in the powerful
highly ionized wind of the archetypal UFO PG 1211+143 are indicative of inner
disc instabilities or short-lived accretion events. The detection of a high
velocity (~ 0.3c) inflow of highly ionized matter, located at 20 R_g, offered
the first direct observational support for the latter scenario, where matter
approaching at a high inclination to the black hole spin plane may result in
warping and tearing of the inner accretion disc, with subsequent inter-ring
collisions producing shocks, loss of rotational support and rapid mass infall.
Simultaneous soft x-ray spectra reveal a lower velocity (~ 0.1c) inflow of less
ionized matter, identified as 'upstream' at 200 R_g, with a line of sight
through matter converging on the supermassive black hole. We discuss here why
ultrafast ionized winds are relatively common in luminous Seyfert galaxies,
while detection of the 0.3c inflow in PG 1211+143 remains a rare example.
