The Plucky Puppy Team

Marley Muffin-Face is the original plucky puppy. Katrin adopted him from the San Diego Animal Shelter when he was a puppy. Without many new or positive experiences during his critical socialization period, he was terrified of everything, especially people. As he was getting used to his new family and environment, Marley showed remarkable strength and courage. With lots of remedial socialization, training, and behavior modification, he eventually adapted to his new home and feline and avian companions. These days he is a composed and confident senior dog who assists Katrin during training sessions.

Plucky Puppy was founded for dogs like Marley, whose spirit could not be vanquished by a bad start in life, and for all the lucky puppies that got everything they needed right from the beginning. We believe that a committed owner—along with ample socialization and effective training—can bring out the plucky puppy in any dog.


Katrin Greim, MA, CTC, CPDT-KA, is a Certified Professional Dog Trainer, Knowledge-Assessed and the owner and founder of Plucky Puppy. She received her Certificate in Training and Counseling with honors from the San Francisco SPCA Academy for Dog Trainers. She also graduated from the Canine Behavior Academy at the Marin Humane Society. In addition to teaching group dog training classes, providing private training and behavior consultations, and day training, she teaches Learning Theory to aspiring dog trainers at the Whole Dog Academy. Katrin is a professional member of the Association of Pet Dog Trainers, an AKC certified Canine Good Citizen evaluator and certified in Pet First Aid and CPR, and has been training dogs since 2006. She shares her life with her wife and two young sons, and her fur kids, Marley Muffin-Face and Stella Bella Ding Dong. 


Cindy Wang, CBCT is Dog*Tec Dog Walking Academy certified and holds a Certificate in Behavior Consultation and Training from the Dog Training Internship Academy. A lifelong dog-lover, she volunteered walking shelter dogs as a kid, in college, and most recently as an adult at the San Francisco SPCA. She has two years experience walking two off-leash packs of dogs every day. Cindy loves helping dogs learn and seeing them have fun. She and her husband are the proud parents of Cocoa, a ball-crazy, brindle Dachshund-Boston terrier mix.  


Joanna Meleiro, CTC unexpectedly found her calling while photographing adoptable dogs for local rescues several years ago. She became fascinated by the process of making the dogs feel comfortable and happy in front of the camera so their personalities could shine for potential future families. After adopting one of her models, complete with a long list of behavior challenges, she dove into the science of animal learning and quickly changed her career plans. She graduated with honors from the Academy For Dog Trainers and enjoys working with fearful and worried dogs.


Sarah Schellhorn, MA, CTC is certified by the Academy for Dog Trainers, which offers a comprehensive two-year course in dog behavior and training.  Dedicated to force-free training methods and continuing education, she keeps current with industry best practices through regular seminar attendance and her professional memberships.  Sarah is an avid believer that training can be fun and rewarding for people and their dogs.  Senior dogs have a special place in her heart, and she enjoys setting up puppies and dogs of all ages for success. After many years working in the field of human behavior, she was pulled to learn more about dog behavior through her love of her Labrador, Violet and later, Bean. Now, she has transitioned from a career in community mental health to work with dogs full-time.  Originally from Chicago, Sarah moved to Portland in 2002. She lives near Mt Tabor with her husband, their Lab, Bean, and a sassy and affectionate cat named Pythagoras.  Sarah spends her free time exploring all her neighborhood has to offer and attending K-9 Nose Work classes with her own canine companion.


Lori Curtin, CTC became interested in dog training after she assisted dog training classes at the East Bay SPCA and Tony LaRussa’s Animal Rescue Foundation. Her passion for dog training led her to pursue additional education, so she enrolled in the Academy for Dog Trainers, a program using positive reward-based training, where she earned her Certificate in Training and Counseling. She trained and enriched dogs’ lives at the humane society and improved their chances for successful adoption.  In the private sector, her goal is to help build great relationships between dogs and their guardians using force-free methods. She is a member of the Association of Professional Dog Trainers and is certified in Pet First Aid and CPR. Lori is owned by two senior rescue dogs, a dachshund mix and a labradoodle, as well as two rescue cats.


Jeff Jensen, CCS has a connection with animals dates back to his childhood in Portland. He often reflects on all the dogs he would interact and play with in his neighborhood walking home from middle-school, simply amazed by the connection he could make with a completely different species (he is still amazed to this day!). Jeff later received his BS degree in Neuroscience and Behavioral Biology at Emory University, and Certificate in Canine Studies from the Northwest School of Canine Studies. His interest in canine behavioral training centralizes around dogs suffering from fear-based anxiety and aggression, but he enjoys working with dogs (and people) of all walks in life. Jeff can be found around town sipping expensive coffee and reading a book (most likely about dog behavior) at a cafe, or otherwise exploring the wilderness with his dog Ronnie.



Marley Nose by Lucien Gamache
Katrin Greim
Cindy Wang
Joanna Meleiro
Sarah and Bean
Lori Curtin
Jeff Jensen