My big orange Sheltie doesn’t know a lot of commands, but somehow he’s learned one super command — “Pup pup!” As far as I can tell, what “Pup pup!” means to him is, “Anticipate what I want right now and do it!” Bizarrely, it’s effective in a wide range of situations.
And this is the dog who spent a year barking at an empty wall before realizing we’d moved the printer.