by Sir Dethlan is a 5-year-old Landseer Newfoundland dog who loves to talk. Being a big dog, he has a distinctive, baritone bark. As you’ll see in this cute clip, he can be very persuasive when tries to explain to his dad that he needs a treat…or two. Watch as Dethan and his dad carry on a conversation. I couldn’t stop smiling when dad asks Declan “You need a cookie. A really big cookie?”
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