and apparently uncalled-for dash at the horse's heels.
This wild act, so contrary to the dog's gentle nature, was
a mere piece of acting. He knew that the horse would
not advance without getting a fright, so he gave him
one in this way, which sent him off at a gallop. Crusoe
followed close at his heels, so as to bring the line alongside
of the nag's body, and thereby prevent its getting
entangled; but despite his best efforts the horse got on
one side of a tree and he on the other, so he wisely let
go his hold of the line, and waited till more open ground