Why conscious decisions don't always work

Stay away from 
the highway &
the tanks. Ignore
the helicopters I see
strutting across the sky
from my workplace
window. Turn my back
on the Defense Force
footage purporting
to be news on the
local TV station. But 
what can I do about 
the Hercules that
suddenly rears up
over the hill I'm 
coming to from the 
other side — so low 
I see the barnacles 
on its belly, so close
I think I'm going to 
hit it — except
drive off the road?