Gimme a break, bro.
My bro's dog barked at the mirror at himself then within a day, he knew that it was his own reflection and he trots past it everyday without a second look. Or the time when my brother's dog was just fine until I noticed that he chewed up my brother's headphones, once I picked it up.The dog looked at me with the headphones in my hand, he gave me puppy-dog eyes, lowered his ears, and whined. He knew what he did was wrong, I hate it when people say~ "oh it's the tone of your voice" yada-yada. I am deaf so I don't really use my voice so what other explanation do you have?
My cats knows that I am deaf and that it was pointless to meow outside so they would get on the windowsill and the visual would let me know that they want in.