McGonagall and Crookshanks outside my house!

NO JOKE! So the other day i was walking into my house from the gym, and sitting on my stoop is this gray cat w/ black strips all over it that looks exactly like professor Mcgonagall when she transfigures into a cat. The cat even had those black stripes around the eyes that resembles her glasses. So i shooo the cat away so i can get into my house, and it moves into my driveway and just sits there. I start making dinner and what not a half hour later, and the cat is still sitting there looking directly at me through my window...weird. So another hour passes, and its time for pluto to go out. As i am walking him down the block, he starts barkin. I look up, and there is this fat orange cat that looks exactly like Hermione's cat crookshanks, but he bolted right after i got a good look at him. I don't know what all this means, but i would be on the lookout for Voldemort!