Here is the passage again:
Anyone who enters Cedric's apartment can tell that this young man has a
dog. For example, puncture marks in the mini blinds, dog snot clouding the
windows, and paw prints on the beige upholstery.
You chose to make the fragment a complete sentence, like this:
Anyone who enters Cedric's apartment can tell that this young man has a
dog. For example, there are puncture marks
in the mini blinds, dog snot clouding the windows, and paw prints on the
beige upholstery.
Well done! You deserve that giant sandwich!