O'Klein produced a series of caricature scenes which typically featured Dogs and/or Cats, with the typical theme being tame sexual friction between Male and Female Dogs, or Cats humorously tormenting Dogs who are trying to relieve themselves. In once scene a smirking cat sits high on a wall after having "fenced in" the local Dogs' favourite watering tree while a series of Dogs grimace in frustration. In another scene a Cat high on a wall torments a series of Dogs of different breeds as they relieve themselves against a wall while standing on their hind legs, pre 1920 work tends to be less risqué, this piece would date to circa 1930.