W hen Isabel Klee was in preschool in South Orange, New Jersey, a semi-concerned teacher called home. Klee was happy and well-behaved, the teacher told Klee’s parents, but she had started to eat all of her food off of the floor. When she moved, she would get from point A to point B by crawling on her hands and knees. She was even drinking water out of bowls on the ground. Whenever there was free time, she would sit in a corner and draw pictures of dogs for as long as she could.  The remedy, as the teacher saw it, was simple: “You have to get this girl a dog.”  Klee, 32, says that suggestion changed the course of her life. But even she couldn’t have predicted that this childhood love would evolve into a real career. Klee runs the account @simonsits on TikTok  — named for her forever dog, Simon, a foster she fell for — where she shares the stories of rescue dogs to her 1.2 million followers. At face value, Klee’s content is straightforward.…