I saw a cat ghost is this crazy?

I was Pretty young, about 13(18 now). I was at a friends house I was walking home through my neighbors yard. I heard the leaves crunching and i looked over and saw 4 paws walkin in the leaves(about 10 ft away) and i looked at it for a little before running home. Then i remembered my neighbors can recently died and they buried it in the yard. I never really told anyone, but i cant get it off my mind. What do you think?