The message
from Mike Barnes contains these words:

Of course. A pile-up is, by definition, a failure to keep a safe
distance. :-)

On someone's behalf, at least.

In any pile-up I'd expect at least some poor sods who left plenty of
room, stopped with several yards to spare, then got shoved into the
wreckage by the tit behind.

--
Skipweasel
Pay no attention to that man behind the curtain.