"Until you, hoomans, learn to sniff each other's butts, so you read each other's thoughts, you'll need us, dogs, to guide you, love you, and make you better people." Corporal K-9 Guinness. If you thought being a K-9 is easy, think again. What's the hardest, you ask? Sniffing bombs? No sir. That's easy once you know what to look for. Apprehending perpetrators? Nope. That's fun. The hardest part of being a K-9 is training people. Humans...