Do you see the dog?
If dogs could fly, would they get trapped in trees? Would they chase sticks thrown by the wind, and drop them in the clouds?
If dogs could fly, would it be considered lucky, like a bird, if they pooped on your head?
If dogs could fly, would it be easier for them to lick your face? Would they sit on the roof, like Snoopy, to sleep?
Do you see it now?