Yahoo: “It’s early morning, just after breakfast, and six-year-old Cayley is wide awake, eagerly anticipating her daily dose of cannabis.  The black labrador, tail wagging, laps up the liquid tincture owner Brett Hartmann squirts into her mouth, a remedy he uses morning and evening to help alleviate Cayley’s anxiety.  “Ever since I started her on CBD (cannabidiol — a marijuana extract), her separation anxiety has disappeared,” says Hartmann, 30, of his pet, a service dog he acquired while in college because he had epilepsy.”