Answer:
I go around and in the house but never touches the house
Goes over all the hills and hollows, Bites hard, but never swallows.
I am the kind of fish that chases a mouse.
I am a creature with a βtightβ name.
Part carbon, part water, I am poison to the fishes. Many falsely claim my name, I am the pause that refreshes. What am I?
I am owned by Old McDonald.