This is late so it'll probably not be seen.
I'm not a business owner but I do basic dog training and walking and general pet sitting as a side hustle. I'm a very small woman (5' 110 lbs).
I got a call from a dog mom asking if I could leash train her 2 year old Great Dane rescue. She and her husband have just been completely unable to get this boy to walk on a leash. We negotiate a price. I work on the cheap side because I'm not licensed but I want to help people so they don't rehome their dogs.
I show up with my fiance and the husband and wife take one look at me and they are incredibly uncomfortable and a bit skeptical. I have my own slip lead and use their leash and collar. My fiance accompanies me and they ask their roommate to walk with us as well. Totally understandable.
This boy is about 150 lbs and he is STRONG. He is also insecure and almost impossible to walk on a lead. He doesn't follow directions well but I'm determined. This boy has been rehomed six times in his two years of living and his parents are considering rehoming him if this doesn't work. They already have 2 adult female Great Danes and a puppy living with them.
The first walk was horrible but like I said, I'm determined to help this pup and his family. The next day, I show up and he's excited to see me. He's a little bit better but not much. His parents are still skeptical. After a week of walks, when I show up, he actually goes and sits by the door to wait for me to leash him! His dad is amazed. Their lead was grossly wanting because they normally don't have to leash their females. I borrow one from my roommate that can hook around my waist.
After three weeks of leash training, his parents are moving and I will not be able to train him any longer. But this boy has made progress by leaps and bounds! His parents are able to take him for walks around the neighborhood. He follows directions. He doesn't bolt. He's not as insecure as he once was. Our last training session, I meet the rest of the household. They call me a miracle worker. We walked for an hour and the only leash I had to use was the one around my waist. We were able to walk hands free. His parents decided to keep him. I'm especially proud of myself for this one.
ETA: Omg thank you for the gold! My first ever!!