Answer:
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word.
cats and deflation tires make this noise.
The more of me there is the less you see.
You went into the woods and got me. You sat down to seek me. You brought me home with yourself because you couldn't find me. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.