The cat is Chaotic Neutral and also a cat. I apologize for being redundant.
If you keep running into it or try to use the Harvest/Tool Use button/key, it will eventually move and you can be on your way, but I have yet to harvest anything of note from my cat other than some mild satisfaction from booting its furry little butt outta my way.
Just keep prodding it with your foot by continually trying to walk through the space he's occupying while saying, "Shoo, kitty. Shoo, kitty. Shoo, kitty."