Hence the joke book I heard of as a kid: "101 ways to wok your dog". Tock and talk are pronounced the same, as is wok (the cooking instrument) and walk.
Our border collies know so many variants of "outside", "walk", "W-A-L-K" spelled out, "woods" (our back woods), "garden", etc. and N number of other words and are at the door before I even know that I'm going there, myself.