Ahhhh. I understand.
I used to have a Labrador Retriever, "Missy". A friend of my father's gave her to us because he could tell from a young age that she didn't have the smarts to be a working retriever.
A cat came into our yard and she went to check it out. She only realized that she could chase it, because it ran away. Well, that made cat-chasing a lot of fun so she chased it out of our yeard, back into the cat's yard, and then (unfortunately for Missy) chased it into a corner.
Big mistake.
Once cornered, the cat TERRIFIED Missy, who ran home twice as fast as she had chased the cat away, and now the enraged cat was chasing Missy with much more apparent homicidal intent than Missy had chased it with.