This video gives a whole new meaning to the expression 'barking up the wrong tree ' . Casey Lantz from Las Vegas filmed his brother 's dog enthusiastically getting his teeth into park shrubbery . Footage shows the canine determinedly attacking a tree trunk and attempting to rip off branches . But despite his best efforts he fails to break off any twigs . Lantz tells the pup to get down but the creature refuses to listen . He continues to sabotage the timber . At one point the pup dangles from the tree with a branch between his jaws . After more than half a minute he shows no sign of giving up . Another video shows the dog repeating the same stunt with a different tree . Caught on camera : This video gives a whole new meaning to the expression 'barking up the wrong tree ' High jump : Casey Lantz from Las Vegas filmed his brother 's dog enthusiastically getting his teeth into park shrubbery . Standing tall : Footage shows the canine determinedly attacking a tree trunk and attempting to rip off branches . Disheartened : But despite his best efforts he fails to break off any twigs .
Casey Lantz from Las Vegas filmed his brother 's dog enthusiastically getting his teeth into a tree . At one point the canine dangles from a branch as he bites it in his jaws .