Afflicting Predator

We call him Dufus though his name
really is Rufus. Substituting the
"R" for a "D" more closely reflects
that dog's compulsive propensities.
Our two little sibling pups have made
the acquaintance of many of
their species in their yet-brief
lifetime. Their cognitive capacity
enables them to recognize which
among them are friends and which
constitute a problem. Dufus
represents a multiple problem
and so when we come across
our old acquaintance on our
woodland trails, like us walking
the newer generation of canine
companions, we keep an eye on Dufus.
As we stand and chat our little female
pleads to be lifted into my arms;
this from a blithe spirit with no
patience ordinarily to being carried.
Which leaves her brother vulnerable
to Dufus's typical manoeuvre where
he corners, then backs our little guy
off-trail hard against a tree trunk
while steadily gaining the advantage
his large muscular body sneaking
over the small silently quailing
back of our fellow prodding us to
swoop like eagles to extricate the
mouse from the elephantine
rutting intention of Dufus.