Finally the conclusive proof of what you've long suspected: your dog is a ruddy genius.
Turns out the reason Lucky has been ditching your side and finding his own route to the park is that dogs will ignore human directions if they aren't the fastest option.
A study published this week in journal Developmental Science took 40 dogs of various breeds at the Yale Canine Cognition Center and tested how they followed directions to access a treats.
All the dogs had to do was lift the lid of a box but researchers added another unnecessary lever that didn't go anything. Rather than following commands to operate the useless lever the dogs went straight to lifting the box lid. Here are those clever pooches in action:
Study author Angie Johnston highlighted how surprising it was that dogs ignored irrelevant cues from humans: "Dogs are surprisingly human-like in their ability to learn from social cues, such as pointing, so we were surprised to find that dogs ignored the human demonstrator and learned how to solve the puzzle on their own."
This alongside the evidence that your dog can understand what you're saying means it won't be long before canine world domination.