This seems to be for real though I would much appreciate someone confirming the reality of this pass: at 00:30 in the following video
a Buccaneer performs a high-speed low-level fly-by between what seems to be an aircraft hanger and another building (from which the fly-by is filmed). It looks like the aircraft is at around 20 feet maximum during this pass; the cameraman actually films it from above when it is passing between the two buildings. The distance between the buildings is perhaps not more than 100 feet.
Thoroughly amazing stuff from absolutely staggering aircraft!! Seems that the Buccaneer was exceptionally stable at low-level...