It is a spectacular day in McKinney and Pet Sitter Leah is looking forward to her walk with Fournette, a black Lab mix named after Leonard Fournette, a running back from LSU. Fournette’s harness is on, he is leashed up, and off the duo goes. They don’t make it very far down the block before an unleashed pup darts out of a garage and heads straight for Fournette. A fight begins. Both dogs are standing on their hind legs, paws up, “going for each other.”